Solving equations by graphing: graphing calculator (video …
Much like Sal did in the video, the graph has two functions, y=-ln(2x) and y=2|x-4|-7. If plotted on a graphing calculator, there are two intersections and solutions for x: 0.5 and 6.238. Though I am unsure why the graph of -ln(2x)=2|x-4|-7 is a line, the line is approximately x=6.238, which is the other solution.