Question

Will give medal. Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work.

Answer 1

The easiest way to solve this is by graphing it out. Tag me if you'd like a demonstration. :)

Answer 2

The standard formula for a quadratic is \(y=ax^2+bx+c\)
you have 3 unknowns there a, b, c
you have 3 given points also, (-2,-20), (0, -4), (4-20)
Plug them into the standard form to solve for a, b,c
then plug back. Done.