Chapter 11 - Section 11.4 - Nonlinear Inequalities in One Variable - Exercise Set - Page 800: 55

Please see the table.

$f(x)=x^2$ $x=0$ $f(x)=x^2$ $f(0)=0^2$ $f(0)=0$ $x=1$ $f(x)=x^2$ $f(1)=1^2$ $f(1)=1$ $x=-1$ $f(x)=x^2$ $f(-1)=(-1)^2$ $f(-1)=1$ $x=2$ $f(x)=x^2$ $f(2)=2^2$ $f(2)=4$ $x=-2$ $f(x)=x^2$ $f(-2)=(-2)^2$ $f(-2)=4$