From the slope of the line, we see that 43 is a very steep slope, so the line is a near vertical line. Also, from the point-slope form of the graph, we know that the line passes through (5,5) . Note: (y-y1)=m(x-x1) passes through (x1,y1). So the result is the line shown in the attached diagram, with no surprises.
Triangles JFE and JLK are similar provided that line segments FE and LK are parallel. This means that corresponding parts of these triangles occur proportionally to one another. In particular,