What is the vertex form of #y= x^2-x-20 #?
1 Answer
Jun 10, 2016
Explanation:
The vertex or turning point is the relative extreme point of the function and occurs at the point where the derivative of the function is zero.
That is, when
ie when
The corresponding y values is then
Since the coefficient of
The corresponding graph is given for completeness.
graph{x^2-x-20 [-11.95, 39.39, -22.35, 3.28]}