Question

Given the following function, which statements are true?

F(x)={-x+1,<0}
{-2,x=0}
{x^2-1>0}


A) f(4)=7
B) f(-2)=0
C)f(1)=0
D)f(-1)=2

Answer 1

f(1)=1^2-1=0
so option C is correct

Answer 2

Als f(-1)=-(-1)+1=2 so option D is also correct