Find the savings plan balance after 18 months with an apr of 6% and monthly payments of $800. assume an ordinary annuity.

The formula for this calculation is Future Value = Payment • [((1 + I)n - 1)/I], where I = interest rate, and n = periods.

In this case, P = $800/month, n = 18 months, and I = 6% (0.06) per year.

Since the information involves months instead of years, it is necessary to divide the interest rate by 12 to obtain the monthly rate. So, 0.06 ÷ 12 = 0.005

We can then enter the information into our formula to obtain:

FV = $800 • [((1.005)18 - 1)/.005]

FV = $800 • [(1.0939 - 1)/.005]

FV =$800 • (0.0939/0.005)

FV = $800 • 18.785

FV ≅ $15,028

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.