If you can do your homework at a rate of 2.6 minutes for every problem, how many problems could be done after 9.11 hours? Round to a whole number.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.