Question

I opened a grocery account at my bank with $200. Every week thereafter, I withdraw $65 from the account to pay for groceries.

If x is the number of weeks I've had the account, then y is the amount in the account.

Find an equation of a line in the form y = mx + b that describes my grocery account balance.

Answer 1

y = 250 - 35x

Or

y = -35x + 250

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m = -35, b = 250