Question

the distance between $-1$ and $7$ on a number line equals $|-1 - 7|$ units.

determine the distance between $-1$ and $7$.
a $-8$ units
b $-6$ units
c $6$ units
d $8$ units
e $9$ units

Explanation:

Step1: Calculate inside absolute value

$\vert -1 - 7 \vert = \vert -8 \vert$

Step2: Evaluate absolute value

$\vert -8 \vert = 8$

Answer:

D. 8 units