### Home > A2C > Chapter 4 > Lesson 4.2.3 > Problem 4-108

4-108.

Find the *x*- and *y*-intercepts and the vertex of *y* = *x*^{2} + 2*x* − 80, sketch the graph, and write the equation in graphing form. Homework Help ✎

Find the *x*-intercepts and use them to locate the vertex.

*y* = (*x* + 1)^{2} − 81