A line passing through which of the following pairs of coordinates represents a proportional relationship? A.
(4, 5) and (8, 10)
B.
(2, 5) and (5, 10)
C.
(2, 5) and (4, 7)
D.
(4, 5) and (8, 7)

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.