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Published byAlexis Grant Modified over 9 years ago
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Algebra 2 Section 2.8
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Graph the piecewise function. Find the domain and range.
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Similar to a linear equation, but with an inequality symbol instead of an equals sign. y > -3x-2(linear inequality) y = -3x-2(linear equation) With inequalities, we need: dashed versus solid lines Shading The solution set is now the shaded region instead of just the line
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Determine if the boundary line is dashed or solid Dashed line for > or < Solid line for Pick a test point Shade the shaded region
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Graph -3x + y < 6
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Graph: 1. x + 4y > 2 2. y < 5x-2
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Just like graphing absolute value equations, except: dashed vs solid lines shading the solution set is now the shaded region instead of just the line
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Graph y ≥ |x| - 4 1. Find the vertex and 2 additional points 2. Solid or dashed line? 3. Pick a test point 4. Shade
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Graph: 1) y ≤ 2|x| + 32) y > 3|x+1|
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Pg. 119 #9, 11, 13, 15, 17, 19, 28, 29
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