SOLUTION: Annie finds another bank, Star Bank, that offers a CD account with a 2% interest rate every month. Star Bank's interest is not compounded. The interest is based on the original amo

Question 1127345: Annie finds another bank, Star Bank, that offers a CD account with a 2% interest rate every month. Star Bank's interest is not compounded. The interest is based on the original amount of deposit. Remember that Annie has $500 to start the account. She will not withdraw or deposit more money in the account for 2 years.
Fill in the table showing the amount of money in the Star Bank CD account over 4 months
If Annie graphed the relation, what would the y-intercept be? Explain how you know this?Is the relation a function? Explain why or why not.Is the relation linear? Explain how you know this. If so, state the rate of change and write the equation of the relation, where x is the number of months and y is the amount in the account. If not, give a clear explanation as to why not.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Interest each month is prt=500*0.02*1=$10.
She will get $10 each month, and this is a linear function, because each defined period is equal in time and the amount is equal as well.
The y-intercept is $500, for that is what she started with.
The function is f(x)=10x+500, where x=the number of months since the deposit.
The money will be
500
510 after 1 month
520
530
540 after
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