Graph on a coordinate plane each set of (x, y) values. which set of values describes two quantities that are in a proportional relationship?
a) (2, 6)(0, 2)(3, 8)
b) (1, 4)(2, 7)(3, 10)
c) (0, 4)(2, 7)(3, 8.5)
d) (3, 5.1)(0, 0)(5, 8.5)

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte