What does the value of h control?
what does the value of k control?
what does the value of a control?
if h = 0 and k = 0, which way does the graph open when a > 0 (positive)?
if h = 0 and k = 0, which way does the graph open when a < 0 (negative)?
if h = 1 and k = 2, what are the coordinates of the blue point?
if h = -3 and k = -2, what are the coordinates of the blue point?