Question

Dada a função f (x)=2x+6, calcule: A) f(3) B)f(0) C) x quando f(x)=0

Answer 1

a. .x=2x+6
3=2x+6
2x=6-3
2x=3
x=3/2

b. x=2x+6
0=2x+6
2x=6-0
2x=6
x=6/2
x=3

c. x=2x+6
x=2.(0)+6
x=0+6
x=6