The scale for maria's toy car collection is 1: 8. if a toy car in her collection is 7 1/2 inches long, how long is the actual car?

60 inches, or 5 feet.

Step-by-step explanation:

Since the scale is 1:8, you need to multiply 7.5 by 8.

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.