Step-by-step explanation:
variable h and variable k affect the graph because
(h,k) is the turning point
and also variable k is how much it increase/decrease on the y-axis (depending on its value)
variable k is how much it goes across the x-axis but there's a twist. if k is - 4 it goes four places in the positive direction if k is 4 it goes four places in the negative direction
