Question 795640
 Determine k so that the point (1,2) lies on the line kx+(k-1)y=13 
Replace x and y with 1 and 2
1k + 2(k-1) = 13
1k + 2k - 2 = 13
3k = 13 + 2
3k = 15
k = 5
:
The equation then; 5x + 4y = 13