The function is .
represents the Cost in dollars for a day and
represents number of miles driven.
(a)
\Find the cost when number of miles driven is .
Substitue in the function
.
The cost is
dollars.
(b)
\Find the number of miles when cost of renting moving truck is
.
Substitute the value of in the function
.
The number of miles .
(c)
\Find the maximum no.of miles,when the cost is no more than
then
.
Substitute in the function
.
The maximun number of miles travelled is miles.
(d)
\Find the implied domain of .
The function is where
number of miles travelled can never be negative.
Hence the implied domain of is
or
.
(a) The cost is
dollars.
(b) The number of miles .
(c) The maximun number of miles travelled is miles.
(d) The implied domain of is
or
.