Distance formula
d = √(x₂- x₁)² + (y₂- y₁)²
Ordered pairs
(2, 3)(-1, 0)
d = √(-1 -2)² + (0 - 3)²
d = √(-3)² + (3)²
d = √9 + 9
d = √18
d = √9 √2
d = 3 √2
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2007-02-09 05:56:12
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answer #1
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answered by SAMUEL D 7
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The formula to find the distance between two points (x1, y1), (x2, y2) is
D=â(x2-x1)²+ (y2-y1)² therefore the answer for your question will be
(2, 3), (-1, 0)..._
D= â (-1-2)² + (0-3)²
D=â18
D=3 â2
It is also the same as finding the hypotenuse of a right angle triangle with legs measuring 3 units each ..
2007-02-09 13:30:42
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answer #2
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answered by Musteni s 1
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3â2 units
So you can visualize the problem (not try to memorize), draw your standard x,y graph, plot your points, subtract x2-x1, y2-y1. On your graph you can clearly see that the distance is the hypotenuse of a triangle with side x (-1 to 2) being 3 units long, and side y (0 to 3) also being 3 units long.
Using Pythagorus's Theorem,
d = â(x² + y²) = â(9 + 9) = â18 = â(9)(2) = 3â2.*******
***Judah below is wrong...he's trying to plug into a formula instead of plotting the problem on a graph so he can see it--and he's got the formula wrong...he forgot to take the square root.***
2007-02-09 12:56:54
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answer #3
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answered by H. Scot 4
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The formula for distance goes as follows
d = sqrt ( (x2 - x1)^2 + (y2 - y1)^2 )
In our case, (x1, y1) = (2, 3) and (x2, y2) = (-1, 0), so we have
d = sqrt ( (-1 - 2)^2 + (0 - 3)^2 )
d = sqrt( (-3)^2 + (-3)^2 )
d = sqrt(9 + 9)
d = sqrt(18)
This can be reduced by radical-reducing methods as normal.
sqrt(18) = sqrt(9 * 2) = sqrt(9)sqrt(2) = 3sqrt(2)
Therefore
d = 3sqrt(2)
2007-02-09 12:58:49
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answer #4
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answered by Puggy 7
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plot these points on a graph.
so you need to find the distance between the x-components and the distance between the y-components.
x-components: 2-(-1)=3
y-components: 3-0=3
With pythagoras, sqrt(3^2 + 3^2) = 3*sqrt(2)
2007-02-09 12:58:14
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answer #5
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answered by Yin H 2
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18. i used the distance formula
(x1 - x2) squared + (y1 - y2) squared
2007-02-09 12:58:41
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answer #6
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answered by Judah[[S.P.]] 3
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SQRT 18
2007-02-09 12:55:38
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answer #7
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answered by Please help me 2
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(3,3)
2007-02-09 12:56:26
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answer #8
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answered by Catherine 2
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