Math 8

Calculating the Cost of Credit

1. Heather purchased a new $1,500 laptop by using a credit card with a 17% interest rate. She will pay off the balance in 2 years by paying monthly payments of $74.16. Calculate Heather's total cost of repayment.

2. Austin qualified for a $30,000 loan with 7.49% interest in order to buy a new ski boat. The term of his loan is 10 years and his monthly payments are $355.95. Find the amount of interest Austin will pay after 10 years.

3. This question is the picture.

4. This question is the second picture.

Thank you in advance smarties!! ;D

  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.

x> 6

step-by-step explanation:

8x+8> 7x+14

8x-7x> 14-8

x> 6

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .