How To Determine The Distance Between Two Numbers On A Number Line
A slow way to calculate the distance between numbers on a number line is to count every number between them. A simpler, faster way is to find the distance through subtraction and absolute values. An absolute value is the positive representation for a number and is symbolized as |a|. For example, the absolute values of 3 and -3, or |3| and |-3|, are both 3. This method of number line distance works for numbers close together and far apart.
Step 1
Select two numbers on the number line. For this example, the numbers are -9 and 5.
Step 2
Subtract one number on the number line from the other number. For this example, -9 subtracted from 5 is 14. If subtracting 5 from -9, the answer would be -14.
Step 3
Obtain the absolute value of the number line difference. For this example, the absolute value for either 14 or -14 — that is, |14| or |-14| — is 14. The distance between the two numbers is 14.
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MLA
Gartneer, Chance E.. "How To Determine The Distance Between Two Numbers On A Number Line" sciencing.com, https://www.sciencing.com/determine-two-numbers-number-line-8107454/. 13 March 2018.
APA
Gartneer, Chance E.. (2018, March 13). How To Determine The Distance Between Two Numbers On A Number Line. sciencing.com. Retrieved from https://www.sciencing.com/determine-two-numbers-number-line-8107454/
Chicago
Gartneer, Chance E.. How To Determine The Distance Between Two Numbers On A Number Line last modified March 24, 2022. https://www.sciencing.com/determine-two-numbers-number-line-8107454/