At the begining of the year the wong family car had been driven 14,539 miles. at the end of the year , their car had been driven 21,844 miles. how many miles did the wong family drive their car during that year?

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step-by-step explanation:

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.