Graphing in two variables
4.9 Quadratic Inequalities
Graph
2
3 4y x x  
2
0 3 4x x  
  0 4 1x x  
4, 1x  
3
2 2
b
x
a
   
   
23 3
2 23 4y     
9 9...
Graph
2
3 4y x x  
4, 1x  
 1.5, 6.25 
Graph
2
3 4y x x  
4, 1x  
 1.5, 6.25 
Graph
2
2 5 3y x x   
 2
2 5 3y x x   
  2 1 3y x x   
1
2 , 3x  
5
4x 
   
25 5
4 42 5 3y    ...
2
2 5 3y x x   
1
2 , 3x  
 1.25, 6.125
2
2 5 3y x x   
1
2 , 3x  
 1.25, 6.125
p. 304 # 3 - 14
Assignment
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4.9.1 quad inequal graph 2 var

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4.9.1 quad inequal graph 2 var

  1. 1. Graphing in two variables 4.9 Quadratic Inequalities
  2. 2. Graph 2 3 4y x x   2 0 3 4x x     0 4 1x x   4, 1x   3 2 2 b x a         23 3 2 23 4y      9 9 4 2 4y    9 18 16 4 4 4y    25 4y    1.5, 6.25 
  3. 3. Graph 2 3 4y x x   4, 1x    1.5, 6.25 
  4. 4. Graph 2 3 4y x x   4, 1x    1.5, 6.25 
  5. 5. Graph 2 2 5 3y x x     2 2 5 3y x x      2 1 3y x x    1 2 , 3x   5 4x      25 5 4 42 5 3y      25 25 16 42 3y     25 25 8 4 3y     25 50 24 8 8 8y     49 8y   1.25, 6.125
  6. 6. 2 2 5 3y x x    1 2 , 3x    1.25, 6.125
  7. 7. 2 2 5 3y x x    1 2 , 3x    1.25, 6.125
  8. 8. p. 304 # 3 - 14 Assignment

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