Describing a Variable in Words

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Describing a Variable in Words
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Describing a Variable in Words

• John invests 30 into a government bond that
  increases in value 1.50 every year.
• Assuming the bond continues to grow at a constant
  rate, find a rule for the total amount of money
  of the bond using x and y.
• In your rule, what real-world quantity does x
  stand for?
• In your rule, what real-world quantity does y
  stand for?

BE VERY DECRIPTIVE!
x is the number of years after investing
y is the total amount of dollars in the bond