In the same taxi, you went 5 miles for $13, while a 13-mile
trip cost $29.
A. What is the rate of change? B. Write a liner equation to find how much it costs for 30-mile trip.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.