This activity will help participants learn some of the basic functionality and features of the Desmos Graphing Calculator. This is basically a Desmos Tutorial.
Plot the lines on the same graph as was shown in the video.
Click the points where the two graphs intersect to identify the ordered pairs.
Plot the following points on the graph:
(0,3), (-1,-2), (3,-1)
Change the color of the points to PURPLE.
Duplicate the table from the video:

Graph the functions on the same graph.
[HINT: Don't forget to type f(x1). Click here for help.]
Use Desmos to find f(17). (Use the function f(x) we defined in the previous problem.)
Make triangle ABC with vertices:
A=(-2,2)
B=(2,2)
C=(0,-2)
Choose a DASHED outline and ORANGE fill color.