Question 642383
m = (y2-y1)/(x2-x1)


-2 = (5-k)/(2-3)


-2 = (5-k)/(-1)


-2(-1) = 5-k


2 = 5-k


2-5 = -k


-3 = -k


3 = k


k = <font color="red">3</font>