anonymous
  • anonymous
ok so I need to sketch the straight line determined by the points and find the slope intercept equation of the line. (1,1) (2,4) I got everything except the book says the answer is y=3x-2 and im getting y=3x+1?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Okay so you found out the slope is 3.
anonymous
  • anonymous
yea
anonymous
  • anonymous
Then you plugged in the point \((1,1)\):\[ (1) = 3(1) + b \]

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More answers

anonymous
  • anonymous
i didn't do that.. but im following..
anonymous
  • anonymous
You solved for \(b\):\[ 1-3 = b\implies -2 = b \]Then put it into the original equation: \[ y = 3x-2 \]
anonymous
  • anonymous
oh
anonymous
  • anonymous
can u just tell me what form of the line is that again..? is that point-slope?
anonymous
  • anonymous
I don't know what you mean.
anonymous
  • anonymous
hmm, like. what is the origional equation?
anonymous
  • anonymous
ok, where did you get 1−3=b⟹−2=b from?
anonymous
  • anonymous
actually, i get it. But why not use point (2,4)?
anonymous
  • anonymous
The \(\implies\) is just like saying "the equation becomes this"
anonymous
  • anonymous
You can use any point you want, if it is on the line.
anonymous
  • anonymous
oh ok. Yea, i see the other one would work as well. Thanks!

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