We want to graph the system $\left\{ \begin{array} { l } { x ^ { 2 } + 2 y = 1 } \\ { 2 x - y = 2 } \end{array} \right.$ to see why there are two solutions.

1. Transform each equation into $y =$ form.

   Answer (a):

   $y = \frac{1-x^2}{2}$

2. Graph each equation and determine the points of intersection.