Question

Sabendo que f(x)=5x+12 e g(x)=-2x-14, determine o valor de f(-1)+f(4).

Answer 1

f(-1)=5(-1)+12

f(-1)=-5+12

f(-1)=7

f(4)=5•4+12

f(4)=20+12

f(4)=32

f(-1)+f(4)

7+32=39

RESP =39