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OpenStudy (anonymous):
\[-3x >24\]
OpenStudy (anonymous):
What are you trying to do? Are you trying to solve the inequality?
OpenStudy (anonymous):
yeah then I have to graph it
OpenStudy (anonymous):
would\[x <8 or x >8\] it be
OpenStudy (anonymous):
Neither. But you are close! Remember, you are dividing both sides by a negative number. What do you think it is now?
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OpenStudy (anonymous):
oh -8
OpenStudy (anonymous):
Yep! And do you think it should be > or < ?
OpenStudy (anonymous):
When you divide do you change the direction of the sign? if so \[x=<-8\]
OpenStudy (anonymous):
And should the dot on the line be solid or hallow
OpenStudy (anonymous):
That's right. But you switch the sign because you divided by a negative number. If you were dividing by positive 3, you wouldn't need to switch it.
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OpenStudy (anonymous):
Wb the dot on the line?
OpenStudy (anonymous):
The dot on the line is hollow because -8 is not part of the solution.
If the equation was x (less than or equal to) -8, then it would be solid.
Do you understand?