The points (0, 2), (1, 3), (2, 6), and (3, 11) are on the graph of a function. Which equation represents that function?

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

On a piece of paper graph f(x)=5•(0.4)^x

With number 11 ( show how you got the answer)