Question

Dada a função f(x)=x2-2x+1,determine 

a f(-1)=

b f(1)=

c f(-2)=

d (2)=

e f(0)=

Answer 1

F(-1)= -1*2-2*(-1)+1= -2+2+1= 1
F(1)=1*2-2*1+1=1
F(-2)=-2*2-2(-2)+1=5
F(2)=2*2-2*2+1=1
F(0)=0*2-2*0+1=1
Acho que está correto, me desculpe se errei algo.. 

Answer 2

f(x) = x² – 2

a)
f(–1) = (–1)² – 2
f(–1) = 1 – 2
f(–1) = –1

b)
f(1) = 1² – 2
f(1) = 1 – 2
f(1) = – 1

c)
f(-2) = (-2)² - 2
f(-2) = 4 - 2
f(-2) = 2

d)
f(2) = 2² - 2
f(2) = 4 - 2
f(2) = 2

e)
f(0) = 0² – 2
f(0) = – 2