9-3 Solve It!
The diagram shows a plan for your new garden.
Need help
converting units?
Lesson 2-6 will
help you out.
You want to use only 1.5 yd3 of topsoil and plan
to spread a layer 4 in. deep. What are the
dimensions of the largest garden you can build?
How do you know?
Garden
x yd
2x yd
9-3 Lesson Quiz
1. What are the solutions of each equation? Use a graph of the
related function.
a. x2 1 4 5 4
b. x2 1 16 5 0
c. x2 2 49 5 0
2. What are the solutions of 6x2 2 216 5 0?
3. The length of a rectangular prism is four times the width. The
height of the prism is 8 ft. If the volume of the prism is
160 ft 3 , what is the width of the prism? Round to the nearest
tenth of a foot.
4. Do you UNDERSTAND? If you have an equation of the form
ax2 1 c 5 0, under what conditions will there be no real
solutions?
Answers
Solve It
Lesson Quiz
0548_hsm11a1seNA_0903.indd 548
2.6 yd by 5.2 yd; explanations
may vary.
2/26/09 6:00:52 PM
1. a. 0
b. no real solutions
c. 27, 7
2. 26, 6
3. 2.2 ft
4. There will be no real
solutions if c . 0.
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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