Question

dada a função f:R x R tal que f (x) = 5-x , verifique os valores de f(0),f(1),f(-2) e f (3)

Answer 1

f (x) = 5-x

f (0) = 5 - 0
f (0) = 5

f(1) = 5-1
f(1) = 4

f (-2) = 5-(-2)
f (-2) = 7

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