Question

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 24 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.

Answer 1

12x + 4 is ur answer
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Answer 2

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