# The graph of #y=x^2-6x+k# as its vertex on the x-axis. How do you find the value of k?

##### 1 Answer

Nov 23, 2016

Set y = 0, evaluate the quadratic at

#### Explanation:

You want the to find the value of k such that the y coordinate of the vertex is 0.

The x coordinate, h, of the vertex is found, using the following equation:

Evaluate at x = 3: