How do you graph 3x+y=12 using intercepts?

1 Answer
Oct 17, 2016

Graph the x intercept (4,0) and the y intercept (0,12) and connect them with a line.

Explanation:

3x+y=12

To find the x intercept, set y=0.

3x+0=12

3x3=123

x=4

The x intercept is (4,0).

To find the y intercept, set x=0.

3(0)+y=12

0+y=12

y=12

The x intercept is (0,12).

To graph this line using the intercepts, first graph the two points (4,0) and (0,12). Then connect the two points with a line.

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