How to find the endpoints of a line segment - High School Math
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Question
The points A, B, and C reside on a line segment. B is the midpoint of AC. If line AB measures 6 units in length, what is the length of line AC?
The points A, B, and C reside on a line segment. B is the midpoint of AC. If line AB measures 6 units in length, what is the length of line AC?
Answer
If B is the midpoint of AC, then AC is twice as long as AB. We are told that AB=6.
The diagram shows six units between points A and B, with B as the midpoint of segment AC. Therefore segment BC is also six units long, so line AC is twelve units long.
If B is the midpoint of AC, then AC is twice as long as AB. We are told that AB=6.
The diagram shows six units between points A and B, with B as the midpoint of segment AC. Therefore segment BC is also six units long, so line AC is twelve units long.
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Question
What is the length of a line with endpoints 
and 
?
What is the length of a line with endpoints
Answer
The formula for the length of a line is very similiar to the pythagorean theorem:
Plug in our given numbers to solve:
The formula for the length of a line is very similiar to the pythagorean theorem:
Plug in our given numbers to solve:
Compare your answer with the correct one above
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