### Home > GC > Chapter 8 > Lesson 8.1.5 > Problem 8-59

8-59.

On graph paper, graph the parabola

*y*= 2*x*^{2}−*x −*15. 8-59 HW eTool (Desmos). Homework Help ✎What are the roots (

*x*-intercepts) of the parabola? Write your points in (*x*,*y*) form.How would the graph of

*y*= −(2*x*^{2}−*x −*15) be the same or different? Can you tell without graphing?

Use the eTool below to solve each part.

Click the link at right for the full version of the eTool: GC 8-59 HW eTool

Look at the graph above to help you write your points in (*x*, *y*) form.

What does multiplying −1 into an equation do to the graph?

Think, how is *y* = *x* different from *y* = −*x*.