You have the following points (1,10),(-3,0) & (6,0)
Use the general form and sub these points in, then solve for a,h and k.
Here's a start
Could someone explain how you work through this kind of sums:
"A parabola has x-axis intercepts 6 and -3 and passes through the point (1, 10). Find the equation of the Parabola"
Any help would be much appreciated,