Margaret and Sam each drew a triangle with a base of length 1 cm. The height of Sam's triangle is one-fourth the height of Margaret's triangle
How many times greater is the area of Margaret's triangle than the area of Sam's triangle?

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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.