Thanks Siron, much appreciated, everything I am doing is a new learning curve for me.

I have a new question.

A parabola is U shaped. My understanding is that this U shape is +

The parabola has axis of symmetry x = 0

The parabola has y intercept (0, - 2)

The points (2, 0) lies on the parabola

I am asked to find the equation, which I think I got it right here;

y = 1/2 x^2 - 2

y = 1/2 x 4 - 2

y = 0

How am I doing?