Barnett Cover Precalculus Functions and Graphs 4/e   Barnett/Ziegler/Byleen
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Chapter 1: Equations and Inequalities

Worked Exercises

Chapter 1: Equations and Inequalities




Exercise Set 1-1


Solve the equation.

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Solve for the indicated variable in terms of the other variables.

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Exercise Set 1-2


Solve by substitution.

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Exercise Set 1-3


Rewrite in interval notation and graph on a real number line.

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Solve and graph.

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Exercise Set 1-4


Write the statement as an absolute value equation or inequality.

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Interpret geometrically and graph. If applicable, write the answer using both inequality notation and interval notation.

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The expression is calculus-related. Solve and graph. Write the solution using interval notation.

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Exercise Set 1-5


Convert imaginary numbers to standard form, perform the indicated operations, and express the answer in standard form.

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Write in standard form.

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Exercise Set 1-6


Solve by factoring.

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Solve by using the square root property.

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Solve using the quadratic formula.

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Solve by completing the square.

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Solve by any method.

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Exercise Set 1-7


Find all solutions possible by the techniques that have been developed so far.

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Exercise Set 1-8


Solve and graph. Express the answer in both inequality and interval notation.

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