Graphing the related system means that you do not have to rewrite the equation to set it equal to 0. It is easier because you can just graph each side of the equation.
Sometimes it is difficult to locate the intersection point for the system. You might have to zoom in a lot or figure out how to resize the window. Using the related function lets you focus on the x-axis to find the points.
First one is C! Because it explains what’s wrong with the lack of fast food in not populated areas. Second one is B! Because they cannot afford much therefore it’ll have a bad outcome. The last one I was a little confused on but It’s likely A.
