The equidistant point between the x intercepts
set the y value to zero, swap the signs of the numbers in the factors.
replace the x's in the factors with zero, then multiple the subsequent answers.
Set the x value in the factors to the axis of symmetry. Then multiple the subsequent answers.
stretches or compresses, aka changes the step pattern
switch the sign of the h value, follow it with the k value. (h, k)
reverse the sign of the h value.
The a value being negative