Question

b) f(-1)= -2x+3

c) f(2/5)= -2x+3

d) f(9-3)= -2x+3

Answer 1

Explicação passo-a-passo:

b)

f(-1) = -2x + 3

f(-1) = -2•(-1) + 3 = 2+3 = 5

C)

f(2/5) = -2x+3 = -2•(2/5) + 3

f(2/5) = -4/5 + 3 = (-4+15)/3

f(2/5) = 11/3

D)

f(9-3) = -2x+3

f(6) = -2•(6) + 3 = -12+3 = -9

Espero ter ajudado bastante!)