### Home > INT2 > Chapter 10 > Lesson 10.1.2 > Problem10-21

10-21.

On graph paper, graph the parabola $y = 2x^2 - x - 15$. Homework Help ✎

1. What are the $x$‑intercepts of the parabola? Write your points in $(x, y)$ form.

Set $y = 0$ and factor, or use the quadratic formula to solve for the $x$-intercepts.

1. How is the graph of $y = -(2x^2 - x - 15)$ the same or different? Can you tell without graphing?

How does the negative sign affect the slope? The $y$-intercept?

Would the $x$-intercepts change?