Discussion:
Graph the function using the equation:
a. Explain why it is not necessary to plot points to graph when using y = a (x - h) 2 + k.
Using the vertex, x-intercept and y intercept
The vertex x=h split the graph into two halves. So, drawing the vertical line x=3 and graph.
On the graph the curve turn at the vertex ( 3,-1).
Describe how this graph compares to the graph of y = x2?