Question 1118696

Find the equation of the parabola in the form of y = a(x-p)(x-q), given the points are (-2,21), (-1,0) and (5,0).
<pre>y = a(x – p)(x – q)
Substitute - 1 for p, 5 for q, and (- 2, 21) for (x, y) in the above equation.
This should result in a = 3
Then substitute 3 for a, - 1 for p, and 5 for q in the above equation.

Correct equation:  {{{highlight_green(matrix(1,3, y, "=", 3(x + 1)(x - 5)))}}}
IGNORE all other USUAL WRONG answers!