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Is there even a right answer??

Anonymous Fri 25 Mar 00:57:21 2022 No.14333303 View Reply Original Report

Quoted By: >>14333386 >>14333388 >>14333416 >>14333430 >>14333437

I think they are all false.

Anonymous

Anonymous Fri 25 Mar 2022 01:10:04 No.14333345 Report

Quoted By: >>14333386

Answer is C

Anonymous

Anonymous Fri 25 Mar 2022 01:25:47 No.14333386 Report

Quoted By:

>>14333303
yep, they're all false
counterexample to each of them:
A) b = 4 -> a = 1.125, which is positive
B) b = -0.5 -> a = -1, which is negative
C) b = -4 -> a = 0.875, which is positive
D) b = 4 -> a = 1.125, which is positive
>>14333345
nope, see above
b = -4 is a clear counterexample

Anonymous

Anonymous Fri 25 Mar 2022 01:26:01 No.14333388 Report

Quoted By: >>14333395

>>14333303
D CAN be true, I guess? If you get into negative numbers between -0.5 and 0 you can make a negative but certainly not for all numbers greater than -2

Anonymous

Anonymous Fri 25 Mar 2022 01:27:38 No.14333395 Report

Quoted By:

>>14333388
a is zero or positive for every single negative value of b from -1 to negative infinity

Anonymous

Anonymous Fri 25 Mar 2022 01:38:09 No.14333416 Report

Quoted By: >>14333420

>>14333303
B
The other three have counterexamples

Anonymous

Anonymous Fri 25 Mar 2022 01:39:21 No.14333420 Report

Quoted By:

>>14333416
Actually, B also has a counterexample. They're all false

Anonymous

Anonymous Fri 25 Mar 2022 01:42:32 No.14333430 Report

Quoted By:

>>14333303
You can cross out a and d immediately as the larger you get from 2 or -2 + the value if it was while the closer you get to a whole number value

As for b and c I’m not sure

Anonymous

Anonymous Fri 25 Mar 2022 01:46:05 No.14333437 Report

Quoted By:

>>14333303
Most likely B because
If
-2 <= b <= 2
Then the closer b gets to 0 the larger the first term becomes and hence adding one would give you a positive value

Also for c
If b = -2
Then
A = 1/2(-2) + 2(-2)/2(-2)
A = 1/-4 + 1
A = -0.25 + 1
A = 0.75

Anonymous

Anonymous Fri 25 Mar 2022 02:23:51 No.14333500 Report

Quoted By:

It's c because .5(-2) + 1 == -1+1 == 0
So any number less than -2 will result in a negative answer. I think they are looking for c as the answer

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