Method 2: Using points on the line To draw a line, we need two points on the line. The easiest two points to fi nd are the points where the line crosses the axes. These are known as the intercepts. To graph a line, follow these steps:
Graphing a line using two points on the line Find the y -intercept by letting x = 0 and fi nding y .
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Find the x -intercept by letting y = 0 and fi nding x . Plot these two points. Using a straight edge, draw a line which passes through these two points.
Worked example 2 Draw a graph of the line 3x − 2y − 12 = 0