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

7-9.

Consider the function *y* =* x*^{2} + 5*x* + 7. Homework Help ✎

Complete the square to find the vertex.

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

Simplify.

Simplify more.

Substitute 0 for *x* to find the *y*-intercept.