CPM Homework Banner

Home > CC3 > Chapter 7 > Lesson 7.2.3 > Problem 7-65

7-65.

When Yoshi graphed the lines and , she got the graph shown below. 7-65 HW eTool (Desmos). Homework Help ✎

graph

  1. One of the lines above matches the equation , and the other matches . Which line matches which equation?

    Look at the -intercepts, otherwise known as the in
    , to decide which line goes with which equation.

    line : , line :

  2. Yoshi wants to add the line to her graph. Predict where it would lie and sketch a graph to show its position. Justify your prediction.

    The slope of the line in part (c) is the opposite of the slope of the line in part (b). The -intercepts are the same.

  3. Where would the line lie? Again, justify your prediction and add the graph of this line to your graph.

    Use the eTool below to graph the line by completing the table.
    Click the link at right for the full version of the eTool: CC3 7-65 HW eTool