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Home > CC4 > Chapter 2 > Lesson 2.2.3 > Problem 2-71

2-71.

Sometimes the quickest and easiest two points to use to graph a line that is not in slope-intercept form are the x- and y-intercepts. Determine the x- and y-intercepts for the two lines below and then use them to graph each line. Write the coordinates of the x- and y-intercepts on your graph. Homework Help ✎

  • The y-intercept is the value of y when x is 0.

    To find the y-intercept, substitute 0 for x and evaluate.
    0 − 2y = 4
    2y = 4
    y = −2
    The y-intercept is (0, −2). Now do the same for the x-intercept, but substitute 0 for y instead.

    Plot the two intercepts and draw the line to connect them.
    Label the intercept points.