### Home > MC2 > Chapter 8 > Lesson 8.1.2 > Problem 8-25

8-25.

Choose a few *x*-coordinates that can be seen in the graph. Estimate their *y*-coordinates.

Notice the scaling of the graph.

2, −1

Notice that since the line slopes downward, its slope will have a negative value.

Try looking for a pattern.

Notice that at *x* = 0 the *y*-coordinate is 2.

Try writing an equation, and then check your answerby substituting points found in (a).