Question

Need Help with 10 questions- Evaluating Functions.

Answer 1

Question 1

If f(x) = x + 2, find f(3).

1

6

5

−1



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If f(x) = −4x − 1, find f(−2).

−9

−7

−10

7



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Question 3
Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie.

c(x) = 2.00x + 0.50

c(x) = 2.00 + 0.50x

c(x) = 2.50x

c(x) = (2.00 + 0.50)x



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Question 4
Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. If Laura keeps the movie for 3 nights, how much will she pay when she returns it?

$2.50

$6.50

$ 3.50

$7.50



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Question 5
If g(x) = x2 + 2, find g(3).

9

8

11

6



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Question 6

Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. If Laura returned the movie and paid $5.00, how many nights did she keep the movie?

14

1.5

8

6



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Question 7
If g(x) = 2(x − 4), find the value of x if g(x) = 20.

32

12

14

10



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Question 8
If h(x) = 2x + 1, find the value of x if h(x) = 11.

5

23

6

10

Answer 2

Question 1:

Substitute in your x, which is 3.
f(3)=3+2
f(3)=5

Question 2:

Substitute in your x, which is -2
f(-2)= −4(-2) − 1
f(-2)=8-1
f(-2)=7

Answer 3

Question 5:

g(x) = x^2 + 2, find g(3).
g(3)=(3)^2+2
g(3)=9+2
g(3)=11

Question 7:

If g(x) = 2(x − 4), find the value of x if g(x) = 20.
20=2(x-4)
20=2x-8
28=2x
x=14

Answer 4

Thank you so much could you help me with the other 6 questions please??

Answer 5

Question 8:

If h(x) = 2x + 1, find the value of x if h(x) = 11
11=2x+1
10=2x
x=5

Answer 6

Question 3:

Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie.



c(x) = 2.00 + 0.50x

Answer 7

just need question 4 and six

Answer 8

Question 4
Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. If Laura keeps the movie for 3 nights, how much will she pay when she returns it?


You use the equation that was derived from Question 3.
c(x)=2.00+0.50x
c(x)=2.00+0.50(3)

= $ 3.50

Answer 9

Try them on your own and tell me what you get, if your stuck I'll help you.

Answer 10

correct
ans help