graph of y=(x-h)(x-k)

Discover how the values of h and k affect the graph!
Think about the following questions while you play around with the values of h and k. 1) Are the x-coordinates of points A and B related to the value of h and k? Are you able to convince your friend of your idea? 2) Is the x-coordinate of point C related to the points A and B? How are they related? 3) Are you able to imagine how the graph of y=(x-5)(x-9) look like? Check your answer by changing the value of h and k.