3. Ralph Rigid likes to eat lunch at 12 noon. However, he also likes to save money so he can buy other consumption goods by attending the \"early bird specials\" and \"late lunchers\" promoted by his local diner. Ralph has 15 dollars a day to spend on lunch and other stuff. Lunch at noon costs $5. If he delays his lunch until 75 hours after noon, he is able to buy his lunch for a price of $5 15. Similarly if he eats his lunch t hours before noon, he can buy it for a price of $5 t. (This is true for fractions of hours as well as integer numbers of hours.) Draw a locus that shows combinations of meal time (t) and money for other stuff (0) that Ralph can just afford