3-6 Graphing Inequalities

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3-6 Graphing Inequalities
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Objective

• Learn to graph linear and absolute value
  inequalities on the coordinate plane

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Vocabulary

• Related equation
• The equation that the inequality resembles
• Ex. y gt 3x 5 and y 3x 5
• Boundary
• A line or curve that separates the coordinate
  plane into two regions

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Graphing Inequalities
Sets Boundary
FALSE
TRUE
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Example 7-1a
Ex 1
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Example 7-1c
Ex 2
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Example 7-3a
Ex 3
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Example 7-3b
Ex 4
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Example 7-2a
Ex 5
Education The SAT has two parts. One tutoring
company advertises that it specializes in helping
students who have a combined score on the SAT
that is 900 or less. Write an inequality to
describe the combined scores of students who are
prospective tutoring clients.
Does a student with a verbal score of 480 and a
math score of 410 fit the tutoring companys
guidelines?
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Education (Graph)
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Example 7-2g
Ex 6
Class Trip Two social studies classes are going
on a field trip. The teachers have asked for
parent volunteers to also go on the trip as
chaperones. However, there is only enough seating
for 60 people on the bus. a. Write an inequality
to describe the number of students and
chaperones that can ride on the bus.

• Graph the inequality.
• c. Can 45 students and 10 chaperones go on the
  trip?

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Class Trip (Graph)
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Homework

• Text p. 98 (13-27 odd)

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