Algebra
22 Online
OpenStudy (anonymous):
Absolute Value of y=3 (solution or no solution)
Absolute value of n + 2 = 4(solution or no solution)
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OpenStudy (anonymous):
For the first one, the absolute value of what number will give you 3?
OpenStudy (anonymous):
3?
OpenStudy (anonymous):
yes. so there is a solution for that equation. agree?
OpenStudy (anonymous):
By the way, is there another number, when you take the absolute value of that number, you will get 3?
OpenStudy (anonymous):
0?
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OpenStudy (anonymous):
No, absolute value of 0 is 0.
What is the absolute value of -3?
OpenStudy (anonymous):
3?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
okay. Can you help me with a few more problem that i'm stuck on please?
OpenStudy (anonymous):
what about your second problem?
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OpenStudy (anonymous):
Absolute value of n+2 is 4.
Tell me, the absolute value of what number will give you 4?
OpenStudy (anonymous):
2
OpenStudy (anonymous):
You mean, n = 2?
OpenStudy (anonymous):
yes.
OpenStudy (anonymous):
correct, when n= 2, you have n+2 = 4
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OpenStudy (anonymous):
Is there another value of n that will work?
OpenStudy (anonymous):
no
OpenStudy (anonymous):
I think there is.
Besides 4, what other number can you think of, when you take the absolute value, will give you 4?
OpenStudy (anonymous):
I don't know.
OpenStudy (anonymous):
what about -4?
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OpenStudy (anonymous):
ohh yeahh
OpenStudy (anonymous):
Isant the absolute value of -4...4?
OpenStudy (anonymous):
Isn't*
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so take n+2 and set it equal to -4.
and you can solve that equation...and what do you get for n?
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OpenStudy (anonymous):
4
OpenStudy (anonymous):
no...to solve n+ 2 = -4
subtract 2 from both sides, you get n = what?
OpenStudy (anonymous):
?
OpenStudy (anonymous):
-2
OpenStudy (anonymous):
no, -4-2 = -6
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OpenStudy (anonymous):
okay
OpenStudy (anonymous):
so your second equation does have solutions. That answers that question.
OpenStudy (anonymous):
so now you have solved your two questions. They both have solutions.
OpenStudy (anonymous):
okay. thank you.
OpenStudy (anonymous):
welcome.