Answer
m=0
The line is horizontal.
Work Step by Step
m=$\frac{y_2-y_1}{x_2-x_1}$
m=$\frac{-1-(-1)}{3-4}$
m=$\frac{-1+1}{-1}$
m=$\frac{0}{-1}$
m=0
The slope is zero, therefore the line is horizontal.
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.