Answer:
the cost is ![\$6](https://tex.z-dn.net/?f=%5C%246)
Step-by-step explanation:
observing the graph
we know that
For the interval of x------>
-----> the cost is ![\$0](https://tex.z-dn.net/?f=%5C%240)
For the interval of x------>
-----> the cost is ![\$4](https://tex.z-dn.net/?f=%5C%244)
For the interval of x------>
-----> the cost is ![\$6](https://tex.z-dn.net/?f=%5C%246)
For the interval of x------>
-----> the cost is ![\$10](https://tex.z-dn.net/?f=%5C%2410)
In this problem we have
hours and
minutes
therefore
the value of x belong to the interval ![(3,4]](https://tex.z-dn.net/?f=%283%2C4%5D)
the cost is ![\$6](https://tex.z-dn.net/?f=%5C%246)
Rotation 90 degrees clockwise and translation 14 units to the left.
In the default window of a graphing calculator, there is only one intersection that you see.
However, if you zoom out, you will see that they are 3 intersections to the pair of equations.
#ANSWER#
(1+sinx/cos²x) =tan²x+1+tanx . secx
-> [(1+sinx/cos²x)] = 1/cos²x+sinx/
-> cos²x
-> = sec²x+tan x sec x
-> =tan²x+1+tanx secx