Question

Dada a função f(x)=-5x+3 determine: f(-1), f(3), f(-2)

Answer 1

f(x) = -5x + 3
f(-1) = -5 . (-1) + 3
f(-1) = 5 + 3
f(-1) = 8

f(3) = -5 . 3 + 3
f(3) = -15 + 3
f(3) = -12

f(-2) = -5 . (-2) + 3
f(-2) = 10 + 3
f(-2) = 13