Question

Seja f: R→R/y=3x². Calcule:

a) f(-2) =

b) f(0) =

Answer 1

f(x) = y = 3x²

a) 

f(-2) = 3(-2)² = 3(4) = 12

b)

f(0) = 3(0)² = 3(0) = 0