To save money, you put $200 in your bank account each week. After saving for 4 weeks, you have $1,700 dollars in your account. Which equation models your savings account balance at the end of each week?

y – 4 = 200(x – 1,700)

y – 200 = 1,700(x – 4)

y – 1,700 = 200(x – 4)

y – 1,700 = 200(x + 4)

Question

To save money, you put $200 in your bank account each week. After saving for 4 weeks, you have $1,700 dollars in your account. Which equation models your savings account balance at the end of each week?

y – 4 = 200(x – 1,700)

y – 200 = 1,700(x – 4)

y – 1,700 = 200(x – 4)

y – 1,700 = 200(x + 4)

anonymous · Answer

a) doesn't make sense, b) 1700(x-4) doesn't seem right. 
Hence, leaving you with equation C and D 
If y is representing the total money you have saved and x is representing the number of weeks you had saved, (x-4) would bring you back to week 0 before you've saved the $1700.
I think C is the best answer