请用视频讲解这道题---```plain text Question 8: A company developed a new energy-saving product. The cost price of this product is 6 yuan/item. Before this product is officially put into the market, a one-month (30 days) trial sale is conducted through consignment points. The selling price is 8 yuan/item. The staff tracked and recorded the sales situation and drew the recording situation as a graph. The broken line ODE in the graph represents the functional relationship between the daily sales volume y (unit: items) and the sales time x (unit: days). It is known that in the functional relationship represented by the line segment DE, for each additional day in time, the daily sales volume decreases by 5 items. (1) The daily sales volume on the 24th day is ______ items, the daily sales profit is ______ yuan; (2) Find the function relationship between y and x, and write the range of x; (3) During the sales period, what is the maximum daily sales profit? Chart/Diagram Description: Type: Line chart Main Elements: - Coordinate Axes: X-axis represents sales time (x, unit: days), Y-axis represents daily sales volume (y, unit: items). - Origin: Labeled as O (0,0). - Points: - O: (0,0) - D: (17, 340) - from the graph labels - E: (30, ?) - x-coordinate is 30 from the graph label. The y-coordinate needs to be calculated. - Lines: - OD: Straight line segment from O(0,0) to D(17, 340). - DE: Straight line segment from D(17, 340) to E(30, ?). The text states that for each additional day in this segment, sales decrease by 5 items. The slope of DE is -5. The duration from x=17 to x=30 is 30 - 17 = 13 days. The total decrease in sales is 13 * 5 = 65 items. The y-coordinate of E is 340 - 65 = 275. So, E is (30, 275). - Labeled Values: - X-axis: 17, 22, 30 - Y-axis: 340 - Annotations: y/件 next to the Y-axis label, x/天 next to the X-axis label. ```