<p>请高手 帮忙解释一下第三章3（10）C&nbsp; 图的原因：题目如下</p><p>3.10 (2) Ralph Rigid likes to eat lunch at 12 noon. However, he also<br/>likes to save money so he can buy other consumption goods by attending<br/>the \early bird specials" and \late lunchers" promoted by his local diner.<br/>Ralph has 15 dollars a day to spend on lunch and other stu . Lunch at<br/>noon costs $5. If he delays his lunch until t hours after noon, he is able<br/>to buy his lunch for a price of $5−t. Similarly if he eats his lunch t hours<br/>before noon, he can buy it for a price of $5−t. (This is true for fractions<br/>of hours as well as integer numbers of hours.)<br/>(a) If Ralph eats lunch at noon, how much money does he have per day<br/>to spend on other stu ? $10.<br/>28 PREFERENCES (Ch. 3)<br/>(b) How much money per day would he have left for other stu if he ate<br/>at 2 P.M.? $12.<br/>(c) On the graph below, use blue ink to draw the broken line that shows<br/>combinations of meal time and money for other stu that Ralph can just<br/>a ord. On this same graph, draw some indi erence curves that would be<br/>consistent with Ralph choosing to eat his lunch at 11 A.M.</p><p>图在附件中</p><p>&nbsp;</p><br/>