This Instructional Activity is a part of the Lesson 19, Unit 4, Grade 8. Now that we know that the graph of a linear equation in two variables is a line and that there is only one line that can pass through two points, then we can easily graph equations using intercepts. We already know that the y-intercept point is the location on the graph of a line where the line intersects the y-axis. The point of intersection will have coordinates (0, y). Similarly, the x-intercept point is the location on the graph of a line where the line intersects the x-axis.