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(Solved): 1.8   2. Find the key numbers of the inequality. (Enter your answers as a comma-separated list. ...


1.8

 

2. Find the key numbers of the inequality. (Enter your answers as a comma-separated list.)

   1 / x-4 + 1 ? 0

 

   x2 ? 4x ? 32 > 0

 

3. Solve the inequality. (Enter your answer using interval notation.)

   2x2 + 4x < 0

 

2x2 ? 4x ? 0

 

x2 + 8x + 1 ? ?14

 

x2 ? 4x + 2 < 7

 

x2 + x < 2

 

x2 + 2x > 3

 

4x -1/x  > 0

 

3x+8/x-1 < 2

 

 

 

 



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1.8 2) To find the key numbers of the inequality 1/x-4 + 1 >= 0 we find the key numbers by equating f(x) to 0 taking LCM we have 1/x-4 + 1>=0 = (1+x-4) / (x-4) >=0 = (x-3) /(x-4)>=0 so f(x) = (x-3) /(x-4) Therefore key numbers are : 3,4 ii) x2
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