Darius owns a business that manufactures and sells record players, now that vinyl records have resurged in popularity. The graph shows Darius’s expected revenue and cost in relation to the price he sets for each record player. To make a profit, Darius should set the price for a record player between $ and $ .

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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.

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

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