Line m has the equation y = 3x + 5. Line n has the equation y = kx - 1. Lines m and n intersect at the point (-4, -7). What is the value of k?
Point -4,-7 satisfies the equation y = kx-1
- 7 = k (-4) -1
-6 = -4k
k = 6/4 = 3/2 = 1 1/2
