Parabolas are nice to graph. you need AT MOST 4 points to graph things like these.

To graph a parabola we need to find the x-intercepts, the y-intercepts, and the vertex.

To find the x-intercepts, we replace y with zero and solve for x.

To find the y-intercepts, we replace x with zero and solve for y

To find the vertex:

If the parabola is given in the form:

the x-value for the vertex is given by:

Thus the co-ordinate for the vertex is:

If the parabola is given in the form:

Then the vertex is given by:

once you have these points, plot them on your graph and draw a curve thought them that looks like a parabola. Try the problems, if you need more help someone will help you