The absolute value of a number is the non-negative value of this number.
E
Practice makes perfect
Analyzing the given expressions, we can see that each of them is an absolute value of a number. Let's recall that the absolute value of a real number x, denoted |x|, is the non-negative value of x without regard to its sign.
|x|= x,if x ≥ 0 - x,if x<0
Now we can apply this to each expression.
Expression
Negative or Positive?
Absolute Value
|- 99|
Negative
- (- 99)=99
|45|
Positive
45
|- 39|
Negative
-(- 39)=39
|- 28|
Negative
- (- 28)=28
|15|
Positive
15
Let's compare the absolute values of these numbers and find the least one.
99,45,39,28, 15
The least value is 15. Therefore, the answer is E.
