Question

Find the maximum or minimum of the following quadratic function: y = x^2 - 2x - 4.
A. -5
B. -4
C. 5
D. 4

Answer 1

the maximum or minimum occurs at the vertex
so you need to find the vertex of this
do you know how to find the coordinate of the vertex

Answer 2

Not really.

Answer 3

Well the x coordinate of the vertex is given by x = -b/2a

Once you find the x coordinate, then plug this into the original equation to find the y value
which is the maximum value

Answer 4

From my graphing...

The minimum = -5

Answer 5

Thank you!!