1) How does "a" affect the appearance of the graph of the quadratic function?[br][br]

2) How does "h" affect the appearance of the graph of the quadratic function?[br][br]

3) How does "k" affect the appearance of the graph of the quadratic function?[br][br]

4) For what value(s) of "a" will the function generate a linear graph? Why?[br][br]