Answer:
m=2
Explanation:
We are given a line y=mx-7 and the point lying on the given line is (3,-1) in the standard {x,y} coordinate plane.
Therefore, substituting the values of x=3 and y=-1 in the given line, we have,
⇒

⇒

⇒

⇒

⇒

Hence,the value of m will be equal to two.