Question

given f(x)=10-2x,find f(7)

A. –4

B. 3

C. 7

D. 56

Answer 1

this is the same as y=10-2x

put x=7 into that equation and find the value for y

Answer 2

replace x with 7;
so f(7) = 10 - 2 *7
f(7)=10-14=-4 It's a).

Answer 3

thanks