Question

If f(x) = 2x + 4, what does f(2) + f(5) =

Answer 1

f(2) = 8, f(5) = 14.

Explanation:

in f(2), 2 will replace x. in f(5), 5 will replace x.

f(2)= 2(2) + 4.

f(2)= 4 + 4.

f(2)= 8

f(5)= 2(5) + 4

f(5)= 10+ 4

f(5)= 14

Answer 2

22

Explanation:

f(2) : 2*2 = 4 , 4+4 = 8

f(5) ; 2*5 = 10 ; 10+4 = 14

8+14 = 22