Question

Seja a função f(X) =-3+2 Calcule:

a) F(-2)=
b) F(2/3)=
c) F(2/3)+f(-2)

Me ajudem por favor...

Answer 1

Oi, tudo bem?

Vou considerar f(x) = - 3x + 2.

a) f(-2)

f(-2) = -3(-2) + 2
f(-2) = 6 + 2
f(-2) = 8

b) f(2/3)

f(2/3) = -3(2/3) + 2
f(2/3) = (-6/3) + 2
f(2/3) = -2 + 2
f(2/3) = 0

c) f(2/3) - f(-2)

= f(2/3) - f(-2)
= 0 - 8
= - 8