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Mathematics
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OpenStudy (baitcaster13):
will medal
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OpenStudy (baitcaster13):
OpenStudy (anonymous):
how many steps from \(-1\) to \(5\)?
OpenStudy (baitcaster13):
a. 14 b. 2 c. 10 d. 6
OpenStudy (justdoublechecking):
Find the slope: (y2-y1) divided by (x2- x1)
OpenStudy (baitcaster13):
can u explain it to me i wasent in class
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OpenStudy (anonymous):
how many units from \(-1\) to \(5\) on the \(x\) axis?
OpenStudy (anonymous):
|dw:1457921917082:dw|
OpenStudy (baitcaster13):
that would be 6 right
OpenStudy (anonymous):
yes, it would
how many steps from \(-3\) to \(5\) on the y?
OpenStudy (baitcaster13):
8
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OpenStudy (anonymous):
right , now for the punch line
OpenStudy (baitcaster13):
the what
OpenStudy (anonymous):
|dw:1457922010081:dw|
OpenStudy (anonymous):
you have a right triangle , you are looking for the hypotenuse
use pythagoras \[a^2+b^2=d^2\\
6^2+8^2=d^2\] or \[d=\sqrt{6^2+8^2}\]
OpenStudy (justdoublechecking):
Exatly ^
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OpenStudy (justdoublechecking):
Exactly*
OpenStudy (baitcaster13):
so that would equal 100
OpenStudy (anonymous):
the distance formula is an application of pythagoras
the distance between \((x_1,y_1)\) and \((x_2,y_2)\) is
\[d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]
OpenStudy (anonymous):
yes, 100 is the square of the distance
so what is the distance?
OpenStudy (baitcaster13):
10
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OpenStudy (justdoublechecking):
Yep.
OpenStudy (anonymous):
bingo
OpenStudy (baitcaster13):
thx
OpenStudy (anonymous):
yw
OpenStudy (justdoublechecking):
Good job.
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OpenStudy (baitcaster13):
thx
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