Answer
$m_{1}$=$-\frac{3}{2}$
Work Step by Step
The slope of perpendicular lines are the negative reciprocals of each other. So $\frac{2}{3}\times m_{1} = -1$
Therefore $m_{1}$=$-\frac{3}{2}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.