Question

How do you find the important points to graph `y=2x^2+4`?

Answer 1

Below

Explanation:

First of all, you know that the graph is a parabola because it is `x^2`. The `2` at the front means that the graph is narrower than the normal `x^2` by around twice as much. The `4` means that you have to shift the parabola up by 4 units.

graph{x^2 [-10, 10, -5, 5]} this is your `x^2`

graph{2x^2 [-10, 10, -5, 5]} this is your `2x^2`

graph{2x^2+4 [-10, 10, -5, 5]} this is your `2x^2+4`