given f (x) = 3x+4, find f (2)

Answers

Answer 1

f(x) = 4x + 4 means that if we put an x into our function, a 3x + 4 come out.

So in this problem, we're putting a 2 into our function which

means that a 3(2) + 1 comes out which simplifies to 6 + 1 or 7.

So f(2) = 7 or the value of the function at 2 equals 7.

Answer 2
ExplanationGiven the equation.

[tex]f(x) = 3x + 4[/tex]

Find f(2) by substituting x = 2 in the equation.

[tex]f(2) = 3(2) + 4 \\ f(2) = 6 + 4 \\ f(2) = 10[/tex]

Therefore the value of f(2) is 10.

Meaning of f(a) and substitution in function

f(a) means the value of f(x) is ... at x = a. Same goes to the f(2) = 10. It means the value of f(x) = 10 at x = 2.

Answer

[tex]f(2) = 10[/tex]


Related Questions

Which equation shows one way to find the value of 45 × 4? 45 × 4 = (9 × 5) × (2 × 2) = (9 × 2) × (5 × 2) = 18 × 10 = ? 45 × 4 = (9 × 5) × (2 × 2) = (9 + 5) × (2 + 2) = 14 × 4 = ? 45 × 4 = (9 × 5) × (2 × 2) = (9 + 2) × (5 + 2) = 11 × 7 = ? 45 × 4 = (9 × 5) × (2 × 2) = (18 × 2) × (10 × 9) = 36 × 90 = ?

Answers

Answer:

45 × 4 = (9 × 5) × (2 × 2) = (9 × 2) × (5 × 2) = 18 × 10 = ?

Step-by-step explanation:

Which equation shows one way to find the value of 45 × 4?

45 × 4

Splitting each number into factors of each other

45 = 9 × 5

4 = 2 × 2

45 × 4 = (9 × 5) × (2 × 2)

45 × 4 = (9 × 2) × (5 × 2)

45 × 4 = 18 × 10

Option A is the correct option

.Write in standard form. 4h - 6(5+7h)

Answers

Answer:

-38h-30

4h+(−6)(5)+(−6)(7h)

=4h+−30+−42h

=(4h+−42h)+(−30)

=−38h+−30

slope and y intercept of 5x + 8y = 8

Answers

Answer:

Slope: -5/8

y intercept: (0,1)

Step-by-step explanation:

The slope of the line will be {m} = -5/8 and the y - intercept will be 1.

What is direct variation?

Direct variation of a quantity {y} with respect quantity {x} means that the value of {y} increases as the the value of {x} increases. Mathematically -

y = Kx

K = y/x

where -

{K} is scale factor. It also tells by how many times is {y} greater than {x}.

Given is the equation of a straight line as -

5x + 8y = 8

We can rewrite the equation as -

5x + 8y = 8

8y = - 5x + 8

y = -(5/8)x + 1

So the slope will be -

m = -(5/8)

c = 1

Therefore, the slope of the line will be {m} = -5/8 and the y - intercept will be 1.

To solve more questions on direct variation, visit the link below -

brainly.com/question/14254277

#SPJ2

1.5:4=9:(2y+5)

Solve for y

Answers

Answer:

y = 9.5

Step-by-step explanation:

Express the ratios in fractional form, that is

[tex]\frac{1.5}{4}[/tex] = [tex]\frac{9}{2y+5}[/tex] ( cross- multiply )

1.5(2y + 5) = 36 ( divide both sides by 1.5 )

2y + 5 = 24 ( subtract 5 from both sides )

2y = 19 ( divide both sides by 2 )

y = [tex]\frac{19}{2}[/tex] = 9.5

Jade has 100 to spend on shoes and socks. She buys a pair of shoes for 75 and wants to wants to spend the rest of the money on socks. Each of socks cost $3.50. let n represent the number of the pair of socks that jade can buy. Which inequality represents her situation?

Answers

Answer:

75 + 3.5n ≤ 100

Step-by-step explanation:

Given that:

Total amount = $100

Cost of shoe = $75

Cost per socks = $3.50

n = number of socks pairs

Cost of shoe + (cost per pair of socks * number of socks) ≤ total amount

75 + (3.50 * n) ≤ 100

75 + 3.5n ≤ 100

Please help!

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.

Answers

Answer:

The opposite of -10·t and t - 10·t is t

Step-by-step explanation:

1) The opposite of 4·x and -5 + 4·x is given as follows;

-4·x + (-5 + 4·x) = -4·x -5 + 4·x = -4·x + 4·x - 5 = 0 - 5 = -5

2) The opposite of -10·t and t - 10·t is given as follows;

-(-10·t) + (t - 10·t) = 10·t + t - 10·t = 10·t - 10·t + t = 0 + t = t

3) The opposite of (-7 - 4·v) and -4·v is given as follows;

-(-7 - 4·v) + (-4·v) = -1 × (-7 - 4·v) - 4·v  = 7 + 4·v - 4·v  = 7 + 0 = 7

Determine whether the function f(x) = -9.5 + 6 + x² is even, odd or neither.

Answers

Answer:

The function f(x) = -9.5 + 6 + x² is neither odd or even.

Step-by-step explanation:

We know that a function is termed as 'even' when

f(-x) = f(x) for all x

We know that a function is termed as 'odd' when

f(-x) = -f(x) for all x

Given the function

f(x) = -9.5x⁵ + 6 + x²

substitute x with -x

f(-x) = -9.5(-x)⁵ + 6 + (-x)²

as (-x)⁵ = -x⁵, so

f(-x) = -(-9.5x)⁵ + 6 + (-x)²

Apply exponent rule: (-a)ⁿ = aⁿ, if n is even

f(-x) = -(-9.5x)⁵ + 6 + x²

Apply rule: -(-a) = a

f(-x) = 9x⁵ + 6 + x²

As

f(-x) ≠ f(x) ≠ -f(x)

Therefore, the function f(x) = -9.5 + 6 + x² is neither odd or even.

Plzzzzzzzzzzz helpp ASAP

Answers

Answer:

the answer a

Step-by-step explanation:

i had it

The last one, D

Because zero cannot be in the denominator of a fraction ...if u plu zero in as x u get zero in the last expression which is undefined....hope this helps

Laura walked 612 laps of a circular path in 2 hours. At that rate, how many laps of the path did she walk in one hour? PLz help

Answers

Answer:

The answer is 3 1/4

Step-by-step explanation:

I hope this helps! :)

Answer:

3 1/4

Step-by-step explanation:

Solve the equation
2x^2 + 8x - 1 = 0
by completing the square.
Give your answers correct to 2 decimal places.

Answers

Step-by-step explanation:

2x² + 8x - 1 = 0

2(x + 2)² - 9 = 0

2(x + 2)² = 9

(x + 2)² = 4.5

x = √4.5 - 2 or x = -√4.5 - 2

x = 0.12 or x = -4.12.

what is thr y-intercept shown in the graph​

Answers

Answer:

It’s 0,0

Step-by-step explanation: it only crosses the origin once and on the 0 so.

Answer:

0

Step-by-step explanation:

The line crosses at the origin.

"The difference between four-fifths of
a number and 11 is -46."

Answers

Answer:

The number is -43.75.

Step-by-step explanation:

4x/5 - 11 = -46

4x/5 = -35

x = -43.75

Answer:

-43.75

Step-by-step explanation:

This is the answer because:

1) We know that 4/5 of a number has to equal -35 since -46 + 11 = -35.

2) 4/5x = -35 (solve for x): -35 ÷ 4/5 = -43.75

3) 4/5 x -43.75 = -35, I got this by solving for x (look at step 2)

Therefore, the answer is -43.75

Hope this helps! :D


The absolute value of -12 is

Answers

Answer:

12

Step-by-step explanation:

If the original number is zero or positive, then the absolute value of the number is simply the original number. If the number is negative, then the absolute value is the original number with the negative sign stripped away. For example: Notice that an equation with an absolute value represents two possibilities.  could i get brainliest please

Write a linear equation with a slope of -9/5 and passes through the point (10,-2).

Answers + explanations please!

Answers

If you can use point slope form it’s easiest.

Y +2 = -9/5(x -10)

The line AB is shown on the grid.
a) Find the gradient of a line
perpendicular to AB.
b) Find the equation of the line
perpendicular to AB and passing
through the midpoint of AB.

Answers

Answer:a=-2

Step-by-step explanation:

find the base of a parallelogram when the area is 180 feet squared and the height is 15 feet

Answers

Answer:

The base is 12ft

Use the figures to complete the statements proving the converse of the Pythagorean theorem.

Drag and drop a phrase, value, or equation into the box to correctly complete the proof.

To prove the converse of the Pythagorean theorem, we must show that if △ABC has sides of a, b, and c such that a² + b² = c² , then △ABC​​ is a right triangle.

Define ​△DEF​ so that it is a right triangle with sides a, b, and hypotenuse x. By the Pythagorean theorem, a² + b² = x² .

Since ​​a² + b² = c² and a² + b² = x²​​, it must be true that ​c² = x²​. Since sides of triangles are positive, then we can conclude that Response area. Thus, the two triangles have congruent sides and are congruent.

Finally, if ​△ABC​ is congruent to a right triangle, then it must also be a right triangle.

Two right triangles with points labeled in capital letters and sides labeled in lower case letters.

Answers

Answer:

def

Step-by-step explanation:

trust meh

took quiz

Answer:

it is DEF

Step-by-step explanation:

i did the k12 quiz

URGENT FOR MY FINAL GRADE DEPENDS IF I PASS THIS CLASS PLEASE HELP

Answers

Answer:

The Answer is B

Step-by-step explanation:

PEMDAS

4 to the power of 3 is 64

100/5 = 20

20 * 4 = 80

80 + 64  = 144

Evaluate 6x - 3, when x = 2 1/4

Answers

Answer:

10.5

Step-by-step explanation:

Plug in 2 1/4

10.5 or 10 1/2

Answer:

21/2 in fractions or 10.5 in decimals

Step-by-step explanation:

6(2 1/4)-3            multiply the denominator with the whole number 2 and add 1

6x 9/4-3         reduce the number with the gratest common factor 2

3 x 9/2-3             when dealing with fraction just multiply denominator

27/2-3                 the denominator will stay the same always

21/2                        Calculate the difference

HELP PLZ DUE IN 30 MIN


x =

Answers

Answer:

x=4

Step-by-step explanation:

20x+5+24x-1=180

44x+4=180

- 4 -4

44x=176

/44 /44

x=4

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The two marked angles are supplementary when the lines are parallel.

  (20x +5)° +(24x -1)° = 180°

  44x +4 = 180 . . . . . . simplify

  44x = 176 . . . . . . . . . subtract 4

  x = 4 . . . . . . . divide by 44

__

The two angles are ...

  (20·4 +5)° = 85°

  (24·4 -1)° = 95°

This my question on the photo can you help me

Answers

Answer:

45 degree..................................

julie has 3 1/3 yards of fabric to make doll outfits each outfit requires 5/6yard of fabric what is the max number of outfits she can make

Answers

Answer: 4

Step-by-step explanation:

From the question, we are informed that julie has 3 1/3 yards of fabric to make doll outfits and that each outfit requires 5/6yard of fabric

The number of outfits she can make would e:

= 3 1/3 ÷ 5/6

= 10/3 × 6/5

= 4

Grayson bought snacks for his team's practice. He bought a bag of oranges for $3.11
and a 24-pack of juice bottles. The total cost before tax was $50.15. How much was
each bottle of juice?

Answers

Answer:

so he bought oranges of 3.11 and a 24 pack of juice bottles  the total cost before tax was 50.15 how much was each bottle of juice what you have to do is....

2

Step-by-step  

its 2 dollars each or 2.10 dollars each

A number is squared, then doubled and then 4 is subtracted. The result is the original number. What could the number be?
(Give answers to 2 d.p)

Answers

Answer:

umm its B cause i got it right hope this helped :)

Step-by-step explanation:

1/4 as a decimal rounded to one significant figure

Answers

Answer:

0.2

Step-by-step explanation:

Answer:

The correct answer is 0.25

Convert the fraction to a decimal by dividing the numerator by the denominator.

0.25

✨LOTS OF POINTS✨
For each sequence write an explicit formula: 7. 1,5, 25, ... a_1:___ r/d:___ a_n:___
8. 29, 35, 41, ... a_1:___ r/d:___ a_n:___

For this sequence, write a recursive formula 9. 7,49,343, ... r/d:___ a_n:___​

Answers

Answer:

Q7. a₁ = 1 , r = 5, aₙ = 5ⁿ⁻¹Q8. a₁ = 29, d = 6, aₙ =  6n + 23Q9. a₁ = 7, r = 7, aₙ = 7aₙ₋₁

Step-by-step explanation:

Q7.

Given sequence

1, 5, 25, ...

This is a GP with the first term of a₁ = 1 and common ratio r = 5

Explicit formula is:

aₙ = 1*5ⁿ⁻¹= 5ⁿ⁻¹

Q8.

Given sequence

29, 35, 41, ...

This is an AP with the first term of a₁ = 29 and common difference d = 6

Explicit formula:

aₙ = 29 + 6(n - 1) = 29 + 6n - 6 = 6n + 23

Q9.

Given sequence

7, 49, 343, ...

This is a GP with the first term a₁ = 7 and common ratio r = 7

Recursive formula is:

aₙ = aₙ₋₁*7 = 7aₙ₋₁

Find the sum.

(3/8x-8)+(3/8x-3)

Step by step explain please!

Answers

3/4x - 11
first calculate the sum
3/4x - 8 - 3
then calculate the difference
3/4x - 11

Answer: 3/4x + -11

Step-by-step explanation:

3/8x -8 + 3/8x - 3

= 3/8x + - 8 + 3/8x + -3

Combine like terms

3/8x + -8 + 3/8x + -3

=(3/8x + 3/8x) + ( -8 + -3)

Answer: 3/4x + -11

HELP PLS ILL MARK BRAINLIEST PLEASEEEEEEEEE

Answers

Answer: A

Step-by-step explanation: because I had that same test last year

the answer is a..........

Jason agreed to make 12 payments of $38.50 to buy a new TV so far he has made Seven payments how much more money does Jason owe

Answers

Answer:

$192.50

Step-by-step explanation:

12*38.50=462

7*38.50=269.5

462-269.50=192.50

Help me out I will gave Brainliest

Answers

Step-by-step explanation:

(3x-2y=-16)first put in standard form y=mx+b

(-2y=-3x-16) divide both sides by -2

y=3/2x+8

Answer:

C

Step-by-step explanation:

By opposite I'm going to assume they mean the perpindicular line

To do this you first need to convert the function into linear form

So we have 3x-2y=-16

and so we can add 2y and 16 to both sides to get

3x+16=2y

then divide by 2 to get

3/2x+8=y

This is our function in linear form but now we need the opposite by taking the negative reciprocal of the slope

This means our near equation is now -2/3x+8 while none of them give that as an option directly if you simplify C it will match

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