Question 143145
This is the easiest way to graph a simple parabola:
Choose any small numbers, positive or negative, near 0. Put them in the equation.

choose: -2,-1,0,1,2
f(-2)=(-2)^2=4
f(-1)=(-1)^2=1
f(0)=0^2=0
f(1)=1^2=1
f(2)=2^2=4
 Plot the points:
{{{graph( 300, 300, -2, 2, -4, 4, x^2 )}}}. 

Notice a trend there? The graph will continue like that forever--- it will get larger and larger the higher the x-value you put in. See below:
{{{graph( 300, 300, -10, 10, -100, 100, x^2 )}}}