s87hgjkgj
s87hgjkgj s87hgjkgj
  • 18-06-2018
  • Mathematics
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the question is in the picture please help if can I will be really grateful

the question is in the picture please help if can I will be really grateful class=

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sqdancefan
sqdancefan sqdancefan
  • 18-06-2018
The factor (x-9) is negative for x < 9. It is zero for x = 9.

The factor (7x+2) is negative for x < -2/7.

The factors have different signs for -2/7 < x < 9. When their signs are different, their ratio is less than zero. When x = 9, the ratio is equal to zero.

The appropriate choice is the graph that shows -2/7 < x ≤ 9.
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