Question

How to find the maximum or minimum value of a quadratic function?

a. standard form
b.factored form
c.vertex form
d.any form

I need the correct answer not someone who is just looking to get a lot of points

Answer 1

Vertex form

Explanation:

You convert to vertex form a(x - b)^2 + c . The coordinates of the maxm/minm will be (b, c).

For example find minimum value of x^2 + 5x - 6:-

x^2 + 5x - 6

= (x + 2.5)^2 - 6.25 - 6

= (x + 2.5)^2 - 12.25

The coordinates of minimumm will be (-2.5, -12.25) The values of the minimum of the function is -12.25