ineedyouubiebs
Write an equation in y intercept form of a line that passes through the points (-2,5) and (4,7)
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melb94
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You have to do this first to find the slope\[\frac{ y^2-y^1 }{ x^2-x^1} \]
ineedyouubiebs
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The slope is 2/9
melb94
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How did u get a 9?
ineedyouubiebs
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Oh wait nevermind, its 2/6 :)
ineedyouubiebs
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I think I got the answer but I'm not sure. Is it y=2/6x+17/3 ?
melb94
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ok thats better! :)
Next you have to find the equation y=mx+b
First plug in the slope for m
Then plug in on of the points for x and y
Which will make you be able to find b
melb94
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I did not get the answer you have
ineedyouubiebs
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I checked it again. Thats what I really got
ineedyouubiebs
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I'm confident thats my answer
melb94
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Try this\[5=-\frac{ 2 }{ 6}(-2)+b\]
ineedyouubiebs
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The slope isnt -2/6 its 2/6
melb94
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Opps the negative is suppose to be there
ineedyouubiebs
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The negative IS suppose to be there? in the 2/6 ?
melb94
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This is what you should use\[5=\frac{ 2 }{ 6 }(-2)+b\]
ineedyouubiebs
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Yeah, that's what I did. After, I got 5=2/6(-2)+b and then I added 2/3 to both side and got b=17/3
ineedyouubiebs
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Was my answer right?
melb94
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b should be\[5\frac{ 2 }{ 3 }\] Oh i see what you did, You kept it as a mixed fraction, but yes thats right
ineedyouubiebs
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ah okay thanks:)
melb94
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Your Welcome!! :)