Question

dada a função f(x)= -3x +2, calcule:
a)f ( 1 )=
b) f ( -3 )=

Answer 1

$a) \: f(1) = - 3 \times 1 + 2 = - 3 + 2 = - 1 \\ \\ b) \: f( - 3) = - 3 \times ( - 3) + 2 = 9 + 2 = 11$