## Are x and y both positive? 1) 2x - 2y = 1, 2) x/y > 1

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ColinF686
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Joined: Mon Nov 02, 2015 9:58 am

### Re: Are x and y both positive? 1) 2x - 2y = 1, 2) x/y > 1

Question can be written as : is x, y >0
1. give x-y =1/2
2. gives
x >y if y>0
x <y if y <0

1. tells x is to the right of y on number line i.e. x>y
2. tells x and y are of the same sign and x>y if both are positive or x <y if both are negative

Combining 1&2--> x>y and x,y>0
tim
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### Re: Are x and y both positive? 1) 2x - 2y = 1, 2) x/y > 1

Do you have a question to ask us?
Tim Sanders
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vishalc581
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### Re: Are x and y both positive? 1) 2x - 2y = 1, 2) x/y > 1

RonPurewal wrote:
vishalc581 wrote:Statement 2: x>y

think about the step that gets you from the original statement (x/y > 1) to this version.

now, think about when you can actually perform that step. (i.e., "I can only do that to both sides if I know that ______________").

Thanks! Again Ron
Thanks & Regards,
Vishal
cgentry
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### Re: Are x and y both positive? 1) 2x - 2y = 1, 2) x/y > 1

That's why Ron is awesome! Good luck vishalc581!
RonPurewal
Students

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you're welcome.