1-2 Solve It!
You use emoticons in text messages to help you communicate.
Here are six emoticons. How can you describe a set that includes
five of the emoticons but not the sixth?
1-2 Lesson Quiz
1. Do you UNDERSTAND? The height of an equilateral triangle
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h equals 2 s where s is the length of a side. Suppose an
equilateral triangle is made with 2-inch toothpicks.
a. Which set of numbers best describes the value of s in inches?
b. Which set of numbers best describes the value of h in
inches?
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2. What is the graph of the numbers 4 ,2!7, and 1.2?
3. Compare !37 and 5.9.
4
4
4. Which property does the equation illustrate? 1 ? 5 5 5
Answers
Solve It!
Lesson Quiz
Answers may vary. Sample:
the set of the emoticons
not wearing glasses
1. a. natural numbers
b. irrational numbers
2.
•7
3. !37 . 5.9
4. Identity Property of
Multiplication
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1.2 4
3 2 1
0
1
2
3
Prentice Hall Algebra 2 • Solve It/Lesson Quiz on Transparencies
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