Question

A function is defined by fx) = 5(2-x). What is f(-1)?

Answer 1

15

Explanation:

Since there is a -1 in place of the x, that means for every x value, x = the number in place of the x, so in this case every x would equal -1.

f(x) = 5(2-x)

f(-1) = 5(2+1)

f(-1) = 5(3)

f(-1) = 15

Answer 2

f ( x ) = 15

Explanation:

Step 1:

f ( x ) = 5 ( 2 - x ) Function

Step 2:

f ( - 1 ) Given

Step 3:

f ( x ) = 5 ( 2 - ( - 1 ) ) Input x

Step 4:

f ( x ) = 5 ( 3 ) Combine Like Terms

Answer:

f ( x ) = 15

Hope This Helps :)