medal + fan
What is the length of line segment A B if A is point one comma one and B is point nine comma seven?
The point A is plotted at one comma one and point B is plotted at nine comma seven on a coordinate plane. The points are connected with a diagonal line segment.
8
ten
twelve
fourteen
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alones (alones):
hey do u have 15 there ??
or is that all
OpenStudy (swaugh):
thats all
jimthompson5910 (jim_thompson5910):
Use the distance formula
\[\Large d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]
jimthompson5910 (jim_thompson5910):
\[\Large A = (x_1,y_1) = (1,1)\]
\[\Large B = (x_2,y_2) = (9,7)\]
OpenStudy (swaugh):
i dont understand how to use that formula
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OpenStudy (swaugh):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
Plug in the given coordinates and simplify
\[\Large d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]
\[\Large d = \sqrt{(9-1)^2+(7-1)^2}\]
\[\Large d = \sqrt{8^2+6^2}\]
\[\Large d = ???\]
OpenStudy (swaugh):
i got 44 @jim_thompson5910
jimthompson5910 (jim_thompson5910):
8^2 is equal to what?
jimthompson5910 (jim_thompson5910):
8^2 means 8*8 btw
6^2 = 6*6
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OpenStudy (swaugh):
8^2 = 64
OpenStudy (swaugh):
6^2= 36
jimthompson5910 (jim_thompson5910):
so we then will have 64+36 = 100
now take the square root of 100 to get ??
OpenStudy (swaugh):
10 is my answer righttt
jimthompson5910 (jim_thompson5910):
yep
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