Your teacher asked your class to describe a real-world situation in which a y−intercept is 140 and the slope is 8. Your partner gave the following description: My younger brother originally had 140 small building blocks, but he has lost 8 of them every month since. What mistake did your partner make? The slope is (select) , so the amount should be (select) . Complete the description of a real-world situation that does match the situation. I opened a savings account with $ worth of birthday money and I (select) $ a month.