Bonnie created a table to show the total she has saved at the end of each week.. Weeks 0 1 2 3 4 5 6 7 8 Amount saved 12 16 20 2
4 28 32 36 40 44 Bobby came up with the following equation to show the total, y, he has saved at the end of each week, x. y = 12x + 4 Compare the rate at which each friend saves money. Select the correct answer from the drop-down menu to complete the statement. The rate at which Bobby is adding to his savings each week is $ more than the rate at which Bonnie is adding to her savings each week.
Bonnie : (0,12),(1,16) slope = (16 - 12) / (1 - 0) = 4/1 = 4 so Bonnie is adding $ 4 every week to her savings
Bobby : y = 12x + 4 the slope here is 12.....so he is adding $ 12 every week to his savings
therefore, the rate at which Bobbie is adding to his savings each week is (12 - 4) = $ 8 more then the rate at which Bonnie is adding to her savings account each week
