(?)=4 means that some thing is a distance of 4 units away from zero on the number line. What could that number(s) be ? why?
4 and -4?
since you said its 4 unit away from the zero, so its either negative or positive
|x-0| = 4
means x is 4 units from 0
4 and -4 is correct for possible values.
The expression "(?)=4" indicates that there exists a number, denoted by the symbol "(?)", which is 4 units away from zero on the number line. To determine the possible values for "(?)", we need to consider both positive and negative distances from zero.
Positive Distance:
If a number is 4 units away from zero in the positive direction, we can represent it as +(4). This means the number is 4 units to the right of zero. Therefore, the value of "(?)" in this case would be +4.
Negative Distance:
If a number is 4 units away from zero in the negative direction, we can represent it as -(4). This means the number is 4 units to the left of zero. Therefore, the value of "(?)" in this case would be -4.
Therefore, the possible solutions for "(?)" would be +4 and -4, as these numbers are each 4 units away from zero on the number line.