Question

Sendo f= IR ---> R definida por f (x) = 2x² - 3, calcule:

a) f (0):

b) f (1):

c) f (-2):

d) f ( 1/2)

Answer 1

f(o)=2.0-3= -3

f(1)=2.1-3=-1

f(-2)=2.4-3= 5

Answer 2

2.0-3 = -3

2.1-3=-1

2.-2-3=8-3=5

2.1/4-3=1/2-3=1-6=-5