Question

considerando a função f(x) = 2x²+1

a) f (1)

b) f (-2)

c) f (0)

Answer 1

f(x) = 2x² + 1

a)
f(1) = 2.1² + 1
f(1) = 2 + 1 = 3

b)
f(-2) = 2 .(-2)² + 1
f(-2) = 2.4 + 1 = 9

c)
f(0) = 2 . 0² + 1
f(0) = 0 + 1 = 1

=)