The quantities x xx and y yy are proportional. x xx y yy 5.8 5.85, point, 8 5.8 5.85, point, 8 7.5 7.57, point, 5 7.5 7.57, point, 5 11.2 11.211, point, 2 11.2 11.211, point, 2 Find the constant of proportionality ( r ) (r)left parenthesis, r, right parenthesis in the equation y = r x y=rxy, equals, r, x.

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