Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 6 - Systems of Equations and Inequalities - 6-1 Solving Systems by Graphing - Lesson Check - Page 367: 5

Answer

The point of intersection is (4,48) which means that an order of 4 tickets will have the same total cost when ordering online or at the door.
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Work Step by Step

(a) Ordering online, the cost is 10dollar × t + 8dollar a service charge. The equation for online order is c=10t+8 Buying at the door will cost 12dollar × t The equation for Buying at the door is c=12t The System of equation is c=10t+8 c=12t (b) The Graph will be:
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