Modelling Linear Growth and Decay (VCE SSCE General Mathematics): Quizzes

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Modelling Linear Growth and Decay
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What defines linear growth?

Increases by same fixed amount each time

In recurrence relations, what is the common difference DD?

The constant amount added or subtracted

What does Pn+1=Pn5P_{n+1} = P_n - 5 model?

Linear decay

When graphing a linear sequence, what indicates growth?

Upward slope of plotted points

In simple interest, what is the principal?

Initial amount borrowed or invested

For 8000 USD at 6% simple interest, what is DD?

480 USD

What makes simple interest a linear growth model?

Interest amount never changes

A 30000 USD asset depreciates at 15% flat rate. What is DD?

4500 USD

How does flat rate depreciation differ from simple interest?

Subtracts DD instead of adding it

What distinguishes unit cost depreciation?

Based on usage rather than time

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