How to find equation of axis of symmetry when given 2 points?

Write 17/20 as a decimal and as a percent.

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply