Algebra 2
Quiz 8.1-8.3
Name ________________________________
Determine whether each equation represents exponential growth or exponential decay. What percent increase or decrease
does the function model?
1. y = 70(0.60)x ________________________
Percent ________________
Graph.
3. y = 5x – 2
2. y = 12(1.34)x ___________________________
Percent _______________
Write and exponential equation whose graph passes
through the give points.
4. (1, 5), (2, 7)
5. For the years 2000-2005, the median price of a single-family home in the United States can be approximated by the function
A = 227,200(1.087)t, where t is the number of years after the year 2000. What is the price of the house in the year 2005?
Find the amount in a continuously compounded account for the given conditions.
6. principal: $1000
annual interest rate: 4.8%
time: 2 years
Evaluate to four decimal places.
7. e2.4
Write in logarithmic form.
8. 62 = 36
Write in exponential form.
9. log2 128 = 7
Evaluate.
10. log2 8