A waterfall is n times the height of its picture on a postcard. Which equation represents the height, y, of the waterfall if the
picture is 7 cm tall?
A y = 7n
By = 7+n
y=n-7
y = 7n

Which of the following transformations will make coincide with ? a. counter-clockwise rotation 90º about a, followed by a translation 5 units to the right b. translation 5 units to the right, followed by a reflection across the y-axis c. translation 5 units to the right, followed by a reflection across the x-axis d. translation 1 unit up and 5 units to the right, followed by a reflection across the x-axis