For what value of k does the line represented by the equation 1 - ky = -3y + x - 7y contain the point (4,-3)?
1 - k(-3) = -3(-3) + 4 - 7(-3)
1 + 3k = 9 + 4 + 21
1 + 3k = 34
3k = 33
k = 11
Whoa nice!
