### Home > CC4 > Chapter 2 > Lesson 2.2.3 > Problem2-71

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 ✎

1. $x−2y=4$

2. $3x+6y=24$

• 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.