The coordinates of the vertices of a quadrilateral are P(6,7), R(6,9), S(8,9), and T(9,7). Problem
Quadrilateral PRST is reflected across the y-axis to create quadrilateral PR'ST. Which rule describes this transformation?
A
(x, y) - (-x, y)
B
(x, y)- (x, y -2)
C
(x, y - (x,-y)
D
(x, y) - (2x, y)

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )