Find the y-intercept, by comparing the equation y = – x – 3 with slope-intercept form equation y = mx + b, where m is slope and b is y-intercept.

y-intercept is – 3. So, line crosses the y-axis at (0, –3).

Next find the slope.

Slope m = – 1.

Graph the line using given point and slope.

1.      Draw a coordinate plane.

2.      Plot the point (0, –3).

3.   Find the next point using . Start at (0, –3), move down 1 unit and right 1 unit, then mark a dot and label it.

4.   Draw a line through these points.

Graph of the equation y = – x – 3  is