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Solving Linear Inequalities II Test
About Solving Linear Inequalities:

When we solve a linear inequality in one variable we turn to a few new properties. We utilize the addition property of inequality along with the multiplication property of inequality. These two properties allow us to isolate our variable on one side of the inequality.

Test Objectives:

•Demonstrate the ability to solve a linear inequality

•Demonstrate the ability to write the solution in interval notation, and graphically

•Demonstrate the ability to solve a three - part inequality

Solving Linear Inequalities II:




#1:


Instructions: Solve each inequality, write the answer in interval notation, and graph each interval on the number line.


a) 3(5 - 5x) - 3(2 - 6x) < -x + 3x


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#2:


Instructions: Solve each inequality, write the answer in interval notation, and graph each interval on the number line.


a) -2(1 + 5x) ≥ 3 + 3(1 - 6x)


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#3:


Instructions: Solve each inequality, write the answer in interval notation, and graph each interval on the number line.


a) -(1 + 2x) > -6(x - 4) - 1


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#4:


Instructions: Solve each inequality, write the answer in interval notation, and graph each interval on the number line.


a) -46 < 4x - 6 ≤ -26


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#5:


Instructions: Solve each inequality, write the answer in interval notation, and graph each interval on the number line.


a) -4 ≤ x + 3 ≤ 2


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Written Solutions:




#1:


Solution:


a) x < -9 : (-∞,-9)


solution x is less than -9

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#2:


Solution:


a) x ≥ 1 : [1,∞)


solution x is greater than or equal to 1

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#3:


Solution:


a) x > 6 : (6,∞)


solution n is greater than 3

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#4:


Solution:


a) -10 < x ≤ -5 : (-10,-5]


solution p is greater than -32

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#5:


Solution:


a) -7 ≤ x ≤ -1 : [-7,-1]


solution k is less than -1

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