A14­5CompoundIneq.notebook
Algebra 1
Ch.4 Notes Page 21
P21 4­5 Compound Inequalities
January 30, 2015
Compound Inequalities
Compound Inequalities are two Inequalities
that are joined by the word and or the word or
And Means that both things have to be true
A and B (The Graphs will overlap)
2 < x < 5
Or Means either the first thing or the second thing have to be true
A or B (The Graphs might or might not overlap)
x < 3 or x > 5
Sep 2­8:31 AM
Oct 20­9:12 AM
AND Example
Solving And Problems
Write and Graph the Inequality
5 < r + 3 < 10
The books cost from $5 to $10
Split into two parts:
5 < r + 3 and r + 3 < 10
Oct 21­7:23 AM
Oct 21­7:29 AM
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A14­5CompoundIneq.notebook
OR Example
January 30, 2015
Solving OR Problems
Write and Graph the Inequality
Solve each part then graph
Discounts are given to people under the age of 10 or over the age of 65
4x + 3 < ­5 or ­2x + 7 < 1
Oct 21­7:26 AM
Oct 21­7:28 AM
HW #22
4­4 P222 #1­6,10,13­16,22­25,31,32,36,42
4­5 P229 #3­27 (Odds)
Please put your name and class period at the top of the homework.
Also include the homework number.
Sep 26­6:46 AM
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