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Problem 23:
- (a) $g^{-1}(v) = \sqrt{0.25 - \frac{v}{18,500}}$. This represents the distance $r$ from the central axis at which the blood velocity is $v$ cm/s.
- (b) $g^{-1}(30) \approx 0.4997$ cm. This represents the distance from the central axis where the blood velocity is 30 cm/s.
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Problem 24:
- (a) $f(x) = 0.9766x$
- (b) $f^{-1}(y) = \frac{y}{0.9766}$. This represents the amount of Canadian dollars equivalent to $y$ U.S. dollars.
- (c) $f^{-1}(12,250) \approx 12,543.52$ Canadian dollars.
Parent Tip: Review the logic above to help your child master the concept of inverse function word problems worksheet.