Question

Dada a função f(x) = ax + 4 e f(-2) = 10 . Calcule f(2).

(A) - 2
(B) 0
(C) 2
(D) 4
(E) 5

Answer 1

Explicação passo-a-passo:

f(x) = ax + 4

f(-2) = 10

10 = a(-2) + 4

10 = -2a + 4

10-4 = -2a

6 = -2a

a = -3

f(x) = -3x + 4

f(2) = - 3.2 + 4 = - 6 + 4 = -2