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course Mth 271
10/3 10p
Determine the average rate of change of the function y(t) = 9 t 2 + 52 t + -16 between x and x + Dx.
dy/dx =
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This is a good start, but it doesn't yet use the given function.
For the given y(t) function, what is y(x + Dx)?
What is y(x)?
What therefore is [y(x+ Dx)-y(x)]/ dx, and what do you get when you simplify this expression?
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What are the growth rate, growth factor and principal function P(t) for an initial investment of $ 980 which is compounded annually at 4% interest?
Growth rate is .04
Growth factor is 1.04
Principal function P(t) = PO(1.04)^t
P(t) = PO(980)(1.04)^t
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Good.
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The second problem looks good.
The first problem needs additional steps.
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