Answer:
h is the horizontal translation
k is the vertical translation
a is the stretch parallel to the y-axis
Explanation:
Parent equation:

Translate
units right:

(if
, then the translation is
units left)
Stretched parallel to the y-axis by a factor of
:

(if
, the graph is also reflected in the x-axis)
Translated k units up:

(if
then the translation is k units down)
Example attached for
