Ok, before I start, there is a graph with this problem. Draw an XY coordinate plane first, the plot the points (0,4) and (-5,0) then draw a line through them and that is line L. Ok here is the problem.
The figure above shows Line L in the xy-coordinate plane. Line m (not shown) is obtained by horizontally translating each point on Line L 2 units to the left. If the equation for line m is y= 4/5x+ K, what is the value of K?