Question

Find the value of k so that the slope of the line through (2,-k) and (-1,4) is -3

Answer 1

k is equal to 3. to find this i used the slope formula y2-y1/x2-x1. 4-k/-1-2
-1-2=-3 so that means that 4-k has to equal 1. 4-3=1
k=1