#78 02.07 Graphs of Rational Functions

Mathematics
Tutor: None Selected Time limit: 1 Day

May 14th, 2015

He drove 100 miles at x mph. .This took: .\frac{100}{x}
He drove 100 miles at [img > mph. .This took: . hours.

Total driving time: . hours.


He drove a total of  miles at an average speed of 50 mph. .This took: . hours.


There is our equation: .

. . which simplifies to: .



Since the cars were driving forward at all times: \:0" alt="x,y \:>\:0" align="absmiddle">

. . Hence, the domain of  is:  \:25" alt="x \:> \:25" align="absmiddle">

May 14th, 2015

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