Courtney sold her paintings to raise money at a charity event for a new sports center. she had enough supplies to make and sell 20 paintings. courtney bought brushes for $8 and paints for $14. the cost of setting up her stall at the event was $28. she sold each painting for $10. the earnings from the sale of paintings is graphed below. let x represent the number of paintings sold, and let y represent the amount of money courtney raised for the sports center. determine which interval represents courtney making a profit, and draw a line segment on the ray to show the interval.