Concept explainers
To solve inequality and graph its solution.
Answer to Problem 2.1.1.6P
Solution set: {(0,0) , (0,-2) , (2,2)}
Explanation of Solution
Given information:
Inequality
Graph:
Calculation:
Write in slope intercept form
1)
Ordinary line
2)
Y-intercept: (0,-2)
slope=-3
Substituting x=0 in equation (2)
Then, y=-2
Substituting y=0 in equation (2)
Then,
Table of x andy is given below
x | y |
| 0 |
0 | -2 |
The graph of ordinary equation
Finding region
Point (0,0) is above line
Substituting value of point (0,0) in inequality equation (1)
On solving,
is true
Point (-2,-2) is below line
Substituting value of point (-2,-2) in inequality equation (1)
On solving,
This is not true
Then region is above line
The graph of inequality is given below
Solution set: {(0,0) , (0,-2) , (2,2)}
Chapter ISG Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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