Algebra 1
Name:
7.3, 5, 6 Review
Period:
Write each expression in radical form, or write each radical in exponential form.
1. 2 ab
1
1
2. 82 2
3. 35y 2
Evaluate:
4.
3
5. 3125
216
1
5
6. 729
5
6
Solve:
7. 8x  4096
8. 4 x3  32
x
1
9. a. Graph y    .
2
b. Find:
y-intercept: ______________
Domain: ________________
x
−2
−1
y
Range: _________________
0
1
2
Flip to back!
10. Determine whether the set of data displays exponential behavior or linear behavior.
x
2
5
8
11
y
480
120
30
7.5
11. The value of Royce Company’s computer equipment is decreasing in value according to the following
function.
y = 4000(0.87)𝑥
In the equation, x is the number of years that have elapsed since the equipment was purchased and y is the value
in dollars. What was the value 5 years after it was purchased?
12. Hans opens a savings account by depositing $1200 in an account that earns 3 percent interest compounded
weekly. How much will his investment be worth in 10 years? Assume that there are exactly 52 weeks in a year
and round your answer to the nearest cent.
13. In 2007 the U.S. Census Bureau estimated the population of the United States estimated at 301 million. The
annual rate of growth is about 0.89%. At this rate, what is the expected population at the time of the 2020
census?