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NSWMaths Standard 2Year 12: Algebra

Quick questions on Exponential models for HSC Maths Standard 2

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is spotting an exponential from a table?
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When a table is supplied and you must name the model, the test for an exponential is the ratio of consecutive values.
What is sign error on decay?
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12%12\% decay is base 0.880.88. Easy to write 1.121.12 by reflex.

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