Question

Dada a função f (×)=7×+20calcule.


F (-5)+f (-4)

Answer 1

F(x)=7x+20

F(-5)=7*(-5)+20

F(-5)=-35+20

F(-5)=-15

F(x)=7x+20

F(-4)=7*(-4)+20

F(-4)=-28+20

F(-4)=-8

F(-5)+F(-4)

-15-8

=-23