58 jyoung So if you look at the equation you can see the yintercept slope yintercept ↓ ↓ y = x 2 The yintercept is where the line crosses the yaxis So which ever graph has 2 as the yintercept in correctIts more complex when the graphs have the same intercept but in this case this should be easy to find So looking atIf we graph the points determined by these ordered pairs and pass a straight line through them, we obtain the graph of all solutions of y = x 2, as shown in Figure 73 That is, every solution of y = x 2 lies on the line, and every point on the line is a solution of y = x 2Divide 1, the coefficient of the x term, by 2 to get \frac{1}{2} Then add the square of \frac{1}{2} to both sides of the equation This step makes the left hand side of the equation a perfect square
Quadratics Graphing Parabolas Sparknotes
