The Speed You Must Travel for a Given Amount of Time

question 101

Essay

The speed you must travel for a given amount of time depends on the distance you must cover.
(a)Write a function r(d)for the speed if the time is 5 hours and the distance covered is d.
(b)What is the domain of this function out of context?
(c)What is the domain of this function in the given context?
(d)Find r(x),r
and r
,.
(e)What happens to the speed if the distance is reduced (divided)by a constant c? Describe using an equation.

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