Find f1(x) for f(x)=1+8x

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Enclose numerators and denominators in parentheses. For example, (ab)/(1+n). f1(x)=

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2.

A runner is jogging at a constant speed of 3.6 miles per hour.

a. Find the distanceddthat the runner jogs as a function of the time spent joggingt. Call this functiond(t). Use *, an asterisk, for any multiplication and /, a slash, for any division.

d(t)=

b. Find the inverse function by expressing the time spent joggingtin terms of the distance joggedd.Call this functiont(d). Use *, an asterisk, for any multiplication and /, a slash, for any division.

t(d)=

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