Quadratic functions

Question

Order each group of quadratic functions from widest to narrowest graph.

Y=3x^2, y=2x^2, y=4x^2

Answer 1

Look at the number in front of the x². The larger the number, the narrower the parabola. So the order, widest to narrowest, is:

y=2x²

y=3x²

y=4x²