Question

Dada a função do 1. Grau f(x) = 2x+8 ache:
a) F(x) = 2
b) F(X) = -3
c) F(X) = 8
d) F(X) = 6

Answer 1

f(x)= 2x + 8

a) F(x) = 2

f(2)= 2 • 2 + 8

f(2)= 4 + 8

f(2)= 12

b) F(X) = -3

f(-3)= 2 • ( - 3) + 8

f(-3)= - 6 + 8

f(-3)= 2

c) F(X) = 8

f(8)= 2 • 8 + 8

f(8)= 16 + 8

f(8)= 24

d) F(X) = 6

f(6)= 2 • 6 + 8

f(6)= 12 + 8

f(6)= 20