To draw: The graph of given inequality in a coordinate plane.
Answer to Problem 21WE
Explanation of Solution
Given information: The given inequality is:
Calculation: The given inequality is:
The corresponding equation is:
Put
Which is true, therefore the open half plane containing the origin is graph of given inequality.
Draw as a dashed line because the inequality
Put
Which is true, therefore the closed half plane containing the origin is graph of given inequality.
Thus the common shaded region is the graph of all inequality.
Chapter 3 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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