Question

seja a função f (x)=2x+3 calcule : a) f (-1) b) f (5) c) f (x)=8

Answer 1

A)F(-1)= 2(-1)+3

F(-1)= -2+3

F(-1)= 1

B)F(5)= 2.5+3

F(5)=10+3

F(5)=13

C)F(8)=2.8+3

F(8)=16+3

F(8)= 19