HSA 2007 Algebra/Data Analysis Item 12print

HSA 2007 Algebra/Data Analysis Item 12

CID
CIDc3dceea6fb0969403b27449d77e984be
itemNum
12
initialLetter
itemType
ECR
itemAnswerKey
N/A
itemMaxScorePoints
4
origNum
x

The table below shows the age and the value of a computer.

Complete the following in the Answer Book:

  • Write an equation for a line of best fit. (If you choose to draw a graph to help you write the equation, use the grid provided in the Answer Book.)
  • What is the slope of your equation? What does the slope represent in the context of this problem?
  • What is the age of the computer when its value is $300? Use mathematics to explain how you determined your answer. Use words, symbols, or both in your explanation.
  • Will your equation remain a good model to predict the value of a computer when it is 6 years old? Use mathematics to justify your answer.

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