Question

Dado f(x) = 3x – 2, determine f(2) – f(–3).

(A) – 9
(B) – 7
(C) 5
(D) 15

Answer 1

Resposta:

15

$f(2) = 3 \times 2 - 2 = 6 - 2 = 4 \ \\ \\ f( - 3) = 3 \times ( - 3) + - 2 = - 9 - 2 = - 11 \\ \\ 4 - ( - 11) = 4 + 11 = 15$