NOTES: This is an increasingly common question seen in exams so make sure you understand it and can give a fully correct solution in case it comes up again
NOTES: part (c) seems complicated but when they say (-3, 0) lies on the curve, they're telling you where an x intercept has moved to... which means you know how far left/right its gone...
NOTES: Contains very typical word questions "interpret a and b" & "suggest why this model may not be realistic". These are likely to come up so don't try to learn how to answer them correctly.
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