Find the equation of the line perpendicular to the graph of y=3x+2 that has an x-intercept of - 3.

A slope perpendicular to 3 would be - 1/3 (find the negative reciprocal of 3).

Then plug the know values in to slope intercept form to find the appropriate b value.

0 = - 1/3 (-3) + b

0 = 1+b

b=-1

Final answer: y = - 1/3x-1