Question

1- DADAS AS FUNÇÕES DETERMINE:
a) f(x) = x + 7
f(0) =
f(5) =
f(-2) =
f(-8) =
b) f(x) = 3x – 2
f(0) =
f(5) =
f(-4) =
f(9) =

2 – Dada f(x) = 8x + 5, determine f(0) + f(3) + f(4):

Answer 1

Explicação passo-a-passo:

a) f(x) = x + 7

f(0) =0+7=7

f(5) =5+7=12

f(-2) =(-2)+7= -8

f(-8) =(-8)+7= -15

b) f(x) = 3x – 2

f(0) =3×0-2= -2

f(5) =3×5-2= 13

f(-4) =3×(-4)-2= 10

f(9) = 3×9-2= 25

2 – Dada f(x) = 8x + 5, determine f(0) + f(3) + f(4):

f(x) = 8x + 5

f(0)=8×0+5= 5

f(3)=8×3+5= 29

f(4)=8×4+5= 37