225k views
4 votes
Please see attached photo for problem from my homework set. Thanks in advance!

Please see attached photo for problem from my homework set. Thanks in advance!-example-1
User Yang Yushi
by
6.1k points

1 Answer

2 votes

We have to find the equation of the line that represents the demand function.

The first step is to find the slope of the line, using the given pair of values.


m=(8.45-9.95)/(95-80)=-0.1

Now, use the point slope formula to find the equation of the line:


\begin{gathered} p-8.45=-0.1(q-95) \\ p=-0.1q+9.5+8.45 \\ p=-0.1q+17.95 \end{gathered}

It means that the answer is p=-0.1q+17.95.

User Wouter Thielen
by
5.4k points