Jina borrowed $8000 at a rate of 18%, compounded semiannually. Assuming she makes no payments, how much will she owe after 5 years?

$18,938.90

Step-by-step explanation:

The formula for compound interest is A=P(a+r/n)^n(t)

A= final amount

P= original amount

r= interest rate

n = number of times interest is compounded

t= time

so in this case your formula will look like A= 8000(1+.18/2)^2(5)

your n amount is 2 because you are compounding semi annually so twice a year and your t is 5 because you are looking for the amount after 5 years. Therefore A = 18938.9

  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.