The selling price is $4,950 more than the purchase price
Answer:
The function is missing in the question. The function is 
The answer is 4930
Step-by-step explanation:
Unit cost of a car is given as

Cost will be minimum when
x = -(-544)/ 2 x 0.8
= 340
Therefore, minimum cost for unit car is


= 4930
Two intersecting lines will form 2 pairs of congruent vertical angles. Congruent angles have the same angle measure and vertical angles are opposite angles formed by two intersecting lines. Hope this helps.