Hey so let’s take the number of hours we go boating as “x” and the TOTAL cost of this whole trip as “y”.
So obviously y would equal everything else so we can write
Y=
Next, it says we rent a canoe for $10 an hour. That means we would have to multiply 10 and x to find the cost of the rent.
So
Y=10x
Finally, it says we paid a registration fee of $25. This 25 is not affected by the number of hours or anything else. It is a fixed amount so we can represent it as
In order to find the slope of a line that is perpendicular to another line, you must find the opposite and reciprocal of that slope. So, you have 2/9, and then 9/2.
