a store is having a sale where all bathing suits at 20% off the original price.sarah has a coupon for$4 off of the original price of one bathing suit.the store first applies the coupon and then takes the 20%percent off the reduced price.if sarah pays 21.52for her bathing suit what was the original price before the sale and without the coupon

The value of h is exactly the axis of symmetry. So when h changes, it completely changes the line of symmetry. This is because the vertex is (h, k) and the x value of the vertex is always equal to the line of symmetry in a quadratic.

Changing the k value does nothing to the line of symmetry. This is because it is just moving the graph up and down, which doesn't change the symmetry of a parabola.