There have been other posts about this question but I am still quite unclear as to why C is the correct answer.
On the number line shown, is zero half-way between r and s?
1) s is to the right of zero.
2) The distance between t and r is the same as the distance between t and s.
I chose B.
Here is my logic. We can rephrase the question as: is r = - s?
From statement 2:
t-r = t - (-s) ==> r = - s
If they didn't have the number line shown, I could understand how you would need statement 1 in order to be sure that s is positive. However, if s were to be negative, then from statement 2, r would be positive. But in the picture, r is to the left of s! This would contradict the number line they provide! Or Is this a situation where you can't assume that the numbers are increasing from left to right on the number line?
Could someone clear this up...
Thanks!
On the number line shown, is zero half-way between r and s?
1) s is to the right of zero.
2) The distance between t and r is the same as the distance between t and s.
I chose B.
Here is my logic. We can rephrase the question as: is r = - s?
From statement 2:
t-r = t - (-s) ==> r = - s
If they didn't have the number line shown, I could understand how you would need statement 1 in order to be sure that s is positive. However, if s were to be negative, then from statement 2, r would be positive. But in the picture, r is to the left of s! This would contradict the number line they provide! Or Is this a situation where you can't assume that the numbers are increasing from left to right on the number line?
Could someone clear this up...
Thanks!
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