In the attached picture you have the graph of . To evaluate the function at , you'll have to start from 0 on the x axis, and travel vertically until you meet the graph.
In this case, if you start from the origin, you have to go upwards one unit, until you meet the graph at (0,1).
First, we have to divde 22/7 to find the scale factor. I chose 22 and 7 because those two sides are ocngruent. We get 3.14. We then have to multiply 12 by 3.14 beacuse that is the side that is congruent with the side y. When you multiply you should get 37.68. Since we have to round we get 37.7.
