If /x/ = -x, then x mst be
A. Positive
B. Nonnegative
C. Negative
D. Nonpositive
E. Zero
Have you checked the definition of |x|?
|x| = x if x >= 0
|x| = -x if x<0
A. Positive
B. Nonnegative
C. Negative
D. Nonpositive
E. Zero
|x| = x if x >= 0
|x| = -x if x<0