Topic Test Answers

You have just graduated from college and purchased a car for $8000. Your credit limit is $20,000. Assume that you make no payments and purchase nothing more and that there are no other fees. The monthly interest rate is 12%. Find the y-intercept for the exponential function which represents how much you will owe (represented by y) after x months with no more purchases or payments.

Complete the table for the following function x -3 -2 -1 0 1 2 3 y 1 3 Graph the function and describe what the graph looks like.

A 30-gram sample of bacteria has some unknown disease that is killing the bacteria. The amount of bacteria is measured each day and the results are shown in the table. Number of Days (d)Amount of Bacteria in Grams (A)030128.5227.075325.72424.44523.21622.05What is the amount of bacteria on the 8th day?

The table of values below represent an exponential function. Write an exponential equation that models the data. x y -2 26 -1 18.2 0 12.74 1 8.918 2 6.2426 a. c. b. d. Please select the best answer from the choices provided

Complete the table for the following function x -3 -2 -1 0 1 2 3 y 3 1 Graph the function and describe what the graph looks like.

The Shop and Save is starting their annual clearance and the store has sent out to all their customers a coupon book offering a variety of savings on their products. The LCD television that you have wanted was reduced by 35% prior to the annual clearance. In addition, the coupon book has a 10% off coupon for the LCD television. Determine what you would pay after applying the discounts given that the price of the LCD television was $1,325. Round your answer to the nearest cent.

A $300 suit is on sale for 30% off. In addition to the sale, you have a 20% coupon that you found in your local paper. Determine the price that you will pay after the discounts. Round your answer to the nearest cent.

The population, P, of six towns with time t in years are given by the following exponential equations: (i) (ii) (iii) (iv) (v) (vi) Which town decreasing the fastest?

Find the missing values for the exponential function represented by the table below.xy-2 5-17.5011.251 2

Given the following table, determine the missing value.Growth Factor?1.194.211.06Percent15%19%321%6%

Find the missing value for the exponential function represented by the table below. x y -2 24 -1 16.8 0 11.76 1 2 5.7624 Then select the graph that best fits the equation. Graph A Graph B

You started to plan for your retirement 2 years ago by investing into a individual retirement account (IRA). You deposited $2,520 dollars over the two year period and your money grew to $2,850 over that same period. Determine, by what percent, did your money grow by for the two year period. Round your answer to the nearest percent.

In 1985, there were 285 cell phone subscribers in the small town of Glenwood. The number of subscribers increased by 75% per year after 1985. How many cell phone subscribers were in Glenwood in 1990?Years1986 (x = 1)1987 (x = 2)1988 (x = 3)Number of cell phone users4988721527

Your local bike shop is having a sale. The shop needs to make room for the 2009 models and all 2008 models are on sale. The shop has a store wide sale and has reduced all 2008 models by 23%. In addition, you found a flier for the shop offering an additional 12% off the 2008 Bianchi, Via Nirone. Determine the decay factor corresponding to each percent decrease.

Suppose that you are given that the sale price of an item is $54.32. This was after applying a store wide 10% discount and then a coupon discounting the item by 5%. Given this information, determine the original price of the sale item. Round your answer to the nearest cent.

The population, P, of six towns with time t in years are given by the following exponential equations: (i) (ii) (iii) (iv) (v) (vi) Which town is growing the fastest?