Answer: A) 5. You are correct.
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Step-by-step explanation:
The length of segment MN is the same as the distance from M to N
Count out the spaces from M to N to see that there are 5 spaces, so that's why choice A is the answer.
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Or you can break it down like this:
- There are 3 spaces from -3 to 0
- There are 2 spaces from 0 to 2
So we have 3+2 = 5 spaces total between M and N.
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A more formal approach:
Let M = -3 and N = 2
Now subtract and apply absolute value.
|M - N| = |-3-2| = |-5| = 5
or
|N - M| = |2-(-3)| = |2+3| = |5| = 5
Either way, we get a distance of 5 units.
Absolute value is used to ensure that the result is never negative.