HSA 2007 Algebra/Data Analysis Item 22print

HSA 2007 Algebra/Data Analysis Item 22

CID
CIDe0eee28802368b2a039cec444f073fa0
itemNum
22
initialLetter
itemType
ECR
itemAnswerKey
N/A
itemMaxScorePoints
4
origNum
x

At the beginning of the summer, Sarah has $250. She takes a summer job and saves $150 per week. Felicia has $1,650 at the beginning of the summer. She travels during the summer and spends $200 per week.

Complete the following in the Answer Book:

  • Write an equation that represents the amount of money Sarah has at the end of each week.
  • Write an equation that represents the amount of money Felicia has at the end of each week.
  • Graph the two equations on the grid provided in the Answer Book. (Suggested graphing window: 0 ≤ weeks ≤ 10; 0 ≤ amount ≤ 2000.)
  • At the end of which week do Sarah and Felicia have the same amount of money? How much money do they have? Use mathematics to justify your answer.

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