Question

A parabola contains the points (0,0) , (-1,-2) and (1,6). What is the equation of parabola in standard form?

Answer 1

work a matrix: for ax^2 + bx + c = y

Answer 2

a0 + b0 + c = 0 ; c = 0

a1 - b = -2
a1 + b = 6

so it really reduces in this case to a system of 2 equations .... which is boring enough