3x=-12

Divide each term in 3x=-12 by 3.

3×3=-123

Cancel the common factor of 3.

Cancel the common factor.

3×3=-123

Divide x by 1.

x=-123

x=-123

Divide -12 by 3.

x=-4

x=-4

Since x=-4 is a vertical line, there is no y-intercept and the slope is undefined.

Slope: Undefined

y-intercept: No y-intercept

Graph 3x=-12