Question

Considerando a função f(x)= -5x+2, determine f(-3) e f (0)

Answer 1

f(x) = - 5x + 2

f(-3) = 

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

f(-3) = 15 + 2

f(-3) = 17

agora f(0)

f(0) = - 5.0 + 2

f(0) = 2

Answer 2

f(-3)= -5x+2
f(-3)=-5.-3+2
f(-3)=17
f(0)=-5x+2
f(0)=-5.0+2
f(0)=2