How to graph a parabola f(x)=x2?

1 Answer

It's really easy once you are taught.

Explanation:

So you start with an x y table (t-chart) and then you write numbers in the x column. I typically use 2 through 2.

Those numbers are your x values. The equation is y=x2 tells you to take your x values individually and square them, giving you your y values.

Then you input the y-values into the chart. 2 and 2 should have the y-value of 4,

1 and 1 should be 1, and zero is zero. Once you have your points (an x-y pair is a point), just graph the points and draw a line through them like this:

graph{x^2 [-10, 10, -5, 5]}

Hope this helps!