"John puts $200 in his safe and starts saving $50 per month. Write a function rule for the amount of money he will have in his safe after x months. How much money will be in his safe after 12 months?"

I got how much money will be in his safe after 12 months, but I don't understand how to write a function for it.

1 answer

x: amount of time, in months
f(x): amount of money as a function of time

f(x) = 200 + 50x
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