Osira wrote:
|x^3| < 64
Quantity A
-x
Quantity B
|-x|
One of my favorite QC strategies is called "Looking for Equality" (free video on this topic here:
http://www.greenlighttestprep.com/modul ... on?id=1099).
In this strategy, I first look for values of x such that the two quantities are equal.
I see that, x =
0 satisfies the inequality |x^3| < 64
Here, we get:
Quantity A: -x = -
0 =
0Quantity B: |-x| = |-
0| =
0Since the 2 quantities are EQUAL in this case, the correct answer is EITHER C or D
Now, try another value of x.
Well, x =
1 satisfies the inequality |x^3| < 64
Here, we get:
Quantity A: -x = -
1 =
-1Quantity B: |-x| = |-
1| =
1Here, the 2 quantities are NOT EQUAL
So, the correct answer is D
Cheers,
Brent