1. 1. Say whether the quantity is changing in a linear or exponential fashion and why: a. A virus multiplies at a rate of 200% every 10 minutes b. The building increases at a rate of 10 feet for every floor 2. Identify is the y-intercept, the constant multiplication factor, and the growth rate for the following exponential functions: a. f(x) = 3 ∙ (2) x b. C(t) = 12(1.5) t c. g(h) = 2500(1 +.075) h Pre-Calculus Gallery Walk STATION 1

2. 1. Situation: Terri saved up some money from her summer job and has $1,500 to invest. She is deciding between three investment offers. Which one should she choose? Investment Offer AInvestment Offer BInvestment Offer C She will receive her principal, plus 13% simple annual interest for 10 years. She will receive her principal, plus a 10% annual interest rate, for 10 years, compounded annually She will receive her principal, plus a 9% annual interest rate, for 10 years, compounded semi- annually Pre-Calculus Gallery Walk STATION 2

3. 1.Find the Annual Percentage Yield (APY), given the following Annual Percentage Rate (APR) information: a.APR is 8% and interest is compounded semi-annually b.APR is 6% and interest is compounded quarterly c.APR is 18% and interest is compounded monthly Pre-Calculus Gallery Walk STATION 3

4. 1. Identify is the y-intercept, the constant multiplication factor, and the growth rate for the following exponential functions a. f(x) = 2 x b. f(x) = (0.75) x c. f(x) = 4 ● 2 x d. f(x) = 3(1.5) x Pre-Calculus Gallery Walk STATION 4

5. 1.The future value of an investment at the end of 12 years is $24,000. What is the initial investment if you earned 10% interest, compounded annually? 2.The future value of an investment at the end of 5 years is $10,000. What is the initial investment if you earned 5% interest, compounded semi-annually? Pre-Calculus Gallery Walk STATION 5

6. 1. Situation: LaShawn saved up some money from her summer job and has $3,500 to invest. She is deciding between three investment offers. Which one should she choose? Investment Offer AInvestment Offer BInvestment Offer C She will receive her principal, plus 15% simple annual interest for 10 years. She will receive her principal, plus a 11% annual interest rate, for 10 years, compounded annually She will receive her principal, plus a 10% annual interest rate, for 10 years, compounded semi- annually Pre-Calculus Gallery Walk STATION 6