bell ringer: (b) (c) - mrs. pisani's math...
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11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
Bell Ringer:
(a)
(b)
(c)
11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
Bell Ringer: Write an equation for the following situation. Then solve.
When Vincent and Jeffrey played 9 games of chess, Vincent won 2 times as many games as Jeffrey did. How many games did each of them win?
11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
Check your homework: Word Problems wksht
11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
11_ 4.14 solve and graph one var inequalities A5.notebook
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October 18, 2013
11_ 4.14 solve and graph one var inequalities A5.notebook
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Lesson 4.14
Objective: SWBAT solve and graph one variable inequalities.
11_ 4.14 solve and graph one var inequalities A5.notebook
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INEQUALITIES REVIEW!
Less than
Greater than
Less than or equal to
Greater than or equal to
Inequality Symbol
≤≥
<>
Graph
Open circle
Closed circle
11_ 4.14 solve and graph one var inequalities A5.notebook
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Practice: Graph each inequality on a number line.
(a) x < -4
(b) 3 ≤ y
(c) -2 < x ≤ 5
11_ 4.14 solve and graph one var inequalities A5.notebook
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11_ 4.14 solve and graph one var inequalities A5.notebook
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Solving InequalitiesYou solve an inequality just like an equation, except...
*The direction of the inequality must reverse each time the problem is multiplied or divided by a negative number.
2 < 3 is true
multiply by 1:
2 ≥ 4 is true
divide by 2:
Check out an example of how this works:
11_ 4.14 solve and graph one var inequalities A5.notebook
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Example: Solve each inequality. Then graph the solution on a number line.
(a) (b)
11_ 4.14 solve and graph one var inequalities A5.notebook
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Extra practice: Complete the solving and graphing inequalities worksheets
11_ 4.14 solve and graph one var inequalities A5.notebook
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HW: 1. Finish inequalities worksheet2. Continue to STUDY for your Unit 1 TEST(ch 2) (Next class we will review)
Test topics: 1. all of Unit 1 Quiz #1 and #2 PLUS2. Solving equations containing fractions3. solving multi-variable equations for 1 variable4. writing equations and solving word problems5. solving and graphing one-variable inequalities
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