How do I find the axis of symmetry of a parabola from 2 symmetrical points?

Question

I have 2 points, (3,-2) and (7,-2)

Answer 1

The Axis of Symmetry can be easily found as halfway between the 2 x-points. Can't do that between the two y-points because they are on the same line, so the parabola will open upwards or downwards.

7 - 3 = 4, divided by 2 = 2, so the AOS will be x= 5 which is 2 more than point 3 and 2 less than point 7.