SOLUTION: The coordinates of point R are (-3,2) and the coordinates of point T are (4,1). What is the length of RT?

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Question 550447: The coordinates of point R are (-3,2) and the coordinates of point T are (4,1). What is the length of RT?
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Note: is the first point . So this means that and .
Also, is the second point . So this means that and .


Start with the distance formula.


Plug in , , , and .


Subtract from to get .


Subtract from to get .


Square to get .


Square to get .


Add to to get .


Simplify the square root.


So our answer is


Which approximates to


So the distance between the two points is approximately 7.071 units.


So the exact length of RT is units which is approximately 7.071 units.

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