Question

evaluate I 9 - 9 I...does absolute symbols make the second nine positive?

Answer 1

|0|=0

Answer 2

no. The absolute value makes the result positive. sp the answer is 0.

Answer 3

Remember that all the absolute values signs do is switch the sign if the result is negative.
\[|a| = a \text{ if } a \ge 0\]\[|a| = -a \text{ if }a < 0\]

So in this case a = 9-9. 9-9 is 0 which is greater than or equal to 0, so the absolute value of 9-9 = |0| = 0 since \(0 \ge 0\)

Answer 4

9+|-9|=9+9=18
|-9+9|=|0|=0
|-9|+|-9|=9+9=18
|-9|-9=9-9=0
|-9|-|-9|=9-9=0
|x| represents the distance from 0
|x| can be positive or neutral depending on x's value

Answer 5

|9|=9 since 9 is 9 units from zero
|-9|=9 since -9 is 9 units from zero
|0|=0 since 0 is 0 units from zero