Chapter 11 - Section 11.1 - Parabolas - 11.1 Exercises - Page 788: 8

I

Since the equation has x^{2}, we know that the parabola opens either up or down (not left or right). After we solve for y, we see that the x^{2} is positive, so therefore the graph opens up. Graph I is the only graph that has these qualities so therefore graph I is the correct answer.