Question

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

Answer 1

Answer:

f ( x ) = 15

Step-by-step 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 :)

Answer 2

Answer:

15

Step-by-step 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