How to graph a parabola f(x)=x^2?

Oct 12, 2017

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 $y = {x}^{2}$ 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!