If x>0, which of the following must be true?
A. 1 < x
B. 0 < x < 2
C. -1 < x < 1
D. -10 < x
E. 1/100 < x
OE
Hi, I found this question hard. Is OE the best way to solve this Q?![]()
A. 1 < x
B. 0 < x < 2
C. -1 < x < 1
D. -10 < x
E. 1/100 < x
OE
[Reveal] Spoiler:
Make the algebra disappear - plug in numbers that fit the problem. Start by picking one of the many good choices that the limitation x>0 allows. By plugging in x=5, for instance, you can POE answer choices B and C.
A fraction will definitely eliminate A, but what about E?
Try a small enough fraction to POE it! For example x=1/1000.
A fraction will definitely eliminate A, but what about E?
Try a small enough fraction to POE it! For example x=1/1000.
Hi, I found this question hard. Is OE the best way to solve this Q?