Unformatted text preview: the equation:
 − 3x  + 5 = 7. Applications Outline Equations Involving Absolute Value Inequalities Involving Absolute Value Applications Inequalities Involving Absolute Value Theorem
Suppose X is an an algebraic
expression and k > 0.
1 2 X  < k if and only if
−k < X < k.
X  > k if and only if
X < −k or X > k. Example
1 y + 1 ≤ 3. 2 52x + 7 + 1 ≥ 11. x  < k
−k 0 k x  > k
−k 0 k Outline Equations Involving Absolute Value Inequalities Involving Absolute Value Applications Example Example
On a given day, the volume of traﬃc at a busy intersection
averages 726 cars per hour. During rush hour, the volume is much
higher; during oﬀ hours, much lighter. Find the range of this
volume if it never varies by more than 235 cars per hour from the
average....
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This note was uploaded on 02/10/2014 for the course MATH 1050 taught by Professor K.jplatt during the Spring '14 term at Snow College.
 Spring '14
 K.JPlatt
 Algebra, Equations, Inequalities

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