huneya
What is the slope of the line between (3, –4) and (–2, 1)?



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waterineyes
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What is the change in y coordinates??

huneya
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3

waterineyes
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How??

huneya
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14= 3

waterineyes
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See, () = +
So, 1  (4) becomes 1 + 4
getting??

huneya
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5 but how

waterineyes
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() becomes positive...
Do you get that??

huneya
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ok so how to find the ans

waterineyes
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so you found y change = 5..
Now similarly tell me the change in x coordinates..

huneya
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5

waterineyes
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Yes..
Now,
\[Slope = \frac{y \; change}{x \; change}\]
Can you do it now??

huneya
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0

waterineyes
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How??

waterineyes
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\(Slope = \frac{5}{5}\)
Is it 0???

huneya
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no u r wrong

waterineyes
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How??

waterineyes
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Aren't you getting the answer (1) ???

huneya
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is in between 2 and 2

waterineyes
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See, the other formula of slope is:
\[Slope = \frac{y_2  y_1}{x_2  x_1}\]

waterineyes
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\[Slope = \frac{1  (4)}{23} = \frac{5}{5} = 1\]

waterineyes
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Is 1 not between 2 and 2??

waterineyes
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\(2, 1, 0 , 1, 2\)
It is between 2 and 2..