Question 1.) What is the incorrect description of a slope?
a. The slope between two points is the change in y divided by the change in x.
b. The slope between two pints is the rise over run.
c. A slope in a linear function is a rate.
d. A slope is the change in the input divided by the change in the output.
e. The slope between two points is the horizontal distance divided by the vertical distance.
Question 2: If we invest $70,000, compounded quarterly at 12%, how much is in the account after 2 years, 6 months?
Question 3: If we need $70,000 in 2 years, 6 months, compounded quarterly at 12%, how much should we invest now?
Question 4: You received a graduation present of $1,000,000 in the form of a special 40 year savings bond with an annual interest rate of 6%, compounded continuously. If the gift will be worth one million dollars in 40 years, what is it worth right now, at the present time?
Question 5: The population of Pumpkin City was 100,000 in 1990 and 90,000 in 1995. If the population continues to decay exponentially at the same rate, estimate the population in 2000.
Question 6: A new home was purchased in 2000 for $200,000. The homeowner has experienced an exponential increase in the value of her home at the rate of 9% per year. Based on this rate, how much will her home be worth in 2010?