### Home > CCA2 > Chapter 2 > Lesson 2.2.1 > Problem 2-82

2-82.

Find the

- and-intercepts.To find the

-intercept, substitutefor .To find the

-intercepts, factor the equation and substitutefor .The

-intercept isand the -intercepts areand Where is the line of symmetry of this parabola? Write its equation.

To find the line of symmetry, average the

-values of the-intercepts.Find the coordinates of the vertex.

Substitute the

-value for the line of symmetry into the equation.

Use the eTool below to graph the equation.

Click the link at right for the full version of the eTool: *2-82 HW eTool*