Chapter 3 - Section 3.1 - Graphing Equations - Exercise Set - Page 126: 38

See graph

$y=3x^2$ This is not a linear equation; this is a parabola. Substitute x-values to find their corresponding y-values. $y=3(0)^2$ $y=0$ $(0,0)$ $y=3(1)^2$ $y=3$ $(1,3)$ $y=3(-1)^2$ $y=3$ $(-1,3)$ Plot these points and connect with a smooth curve.