Question

Find the range of f(x) = -x2 + 1 for the domain {-2, 0, 2}

Answer 1

Range is just input the domain

so find f(-2), f(0) and f(2)

f(-2)=-(-2)²+1=-4+1=-3
f(0)=-(0)²+1=0+1=1
f(2)=-(2)²+1=-4+1=-3

range={-3,1}