Question

Find the vertex of x^2-4x+3=0.

Is the vertex a minimum or maximum. Explain.
You must show all work to receive full credit.

Answer 1

I asked you if you typed it correctly, and you said that it was typed correctly.

x^2 - 4x + 3 = 0

This is not the equation of a graph, it is vertical lines with infinite slope.

But, if it were a regular function

x^2 - 4x + 3 = y

a b c

To find the vertex, use the vertex formula

-b/2a

-(-4)/2(1)=4/2 = 2.

The vertex is at x = 2

4-8+3=y

y = -1

Coordinates of vertex is (2,-1)

It is a minimum because the coefficient a is a positive number

Hope this helps :)

-Jeron