### Home > CCA2 > Chapter 7 > Lesson 7.1.1 > Problem7-9

7-9.

Consider the function y = x2 + 5x + 7. Homework Help ✎

1. Complete the square to find the vertex.

2. Find the y-intercept.

Use the vertex, the y-intercept, and the symmetry of parabolas to find a third point and sketch the graph.

Add and subtract $\left ( \frac{5}{2} \right )^{2}$  on the same side of the equal sign.

Simplify.

Simplify more.

Substitute 0 for x to find the y-intercept.