Question

Dada a função f:IR-IR tal que f(x)=2x - 3, calcule: a) f(0)
b) f(-1)
c) f(1/2)​

Answer 1

a) f(0) = 2.0-3
f(0) = 0-3
f(0) = -3

b) f(-1) = 2.(-1) - 3
f(-1)= -2 -3
f(-1) = -5

c) f(1/2) = 2.(1/2) -3
f(1/2)= 2/2 - 3
f(1/2) = 1-3
f(1/2) = -2