Comparing parabolas

Author:
Joshua Price
Topic:
Parabola
Find the x-intercepts of the parabolas y=1/4 x^2-4 and y=-1/2 x^2+8. What do you notice about the x-intercepts of each parabola? What is the domain where -1/2 x^2+8 > 1/4 x^2-4 ?