The applet below has the graph of y=a(x-h)^2+k. You can change the value of a, h, and k, by moving the sliders.[br][br]Move the sliders a, h, and k, and see how the graph changes. Then, answer the questions below in your notebook.

[b]Question 1: [/b]How does "a" affect the graph of y=a(x-h)^2+k?[br][br][b]Question 2: [/b] How does "h" and "k" affect the graph of y=a(x-h)^2+k?[br][br][b]Question 3: [/b]What is the vertex of y=a(x-h)^2+k?[br][br][b]Question 4: [/b]What is the vertex of the following:[br]a) y=2(x-3)^2+1[br]b) y=-(x+2)^2-8[br]c) y=3(x+2)^2[br]d) y=8x^2+1[br]e) y=x^2