Problem N 1
In this problem
Looking the figure
we have that
each space in the number line represents 1 unit
so
Plot in the number line the points 7 and -7
see the figure below
The distance from each point to zero is equal to 7 units
The distance between -7 and 7 is equal to
d=7-(-7)=7+7=14 units
with the absolute
[tex]\begin{gathered} \left|-7-7\right| \\ \lvert-14\rvert=14 \end{gathered}[/tex]
with the absolute value is the same the operation
(-7-7) or (7-(-7)) --------> the result is always a positive value (14)
Verify the result
In the number line, there are 14 spaces between -7 and 7
that means
The distance is 14 units
