anonymous
  • anonymous
How do you write an equation in slope-intercept form for(-2,1); m=1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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KatrinaKaif
  • KatrinaKaif
Plug it into the equation: (y-y1) = m (x-x1) as (-2,1) = (x1,y1) and m = 1
anonymous
  • anonymous
you're just getting people to do your homework, this question is the exact same as the last one you asked. You know these people won't be here when it comes test time
KatrinaKaif
  • KatrinaKaif
Can you solve that for me Mira? I can guide you through.

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More answers

anonymous
  • anonymous
okay so, 1= 1(-2) +b right?
KatrinaKaif
  • KatrinaKaif
(y- 1) = 1 (x- (-2) y - 1 = 1 (x + 2) y - 1 = 1x + 2 y = 1x +1
anonymous
  • anonymous
wait what D: I'm so confused.
KatrinaKaif
  • KatrinaKaif
Haha, okay lets take it step by step.
KatrinaKaif
  • KatrinaKaif
The equation we plug these in is: (y -y1) = m (x-x1) The given points are: (-2, 1) which substitutes as (x1,y1) If we put it all together, we get: (y - 1) = m (x - (-2) Understood?
anonymous
  • anonymous
Yes okay..
anonymous
  • anonymous
equation is y=mx+b << u have (-2,1), which is x=-2, y=1, and m=1.... plug back in--- 1=1(-2)+b, solve for b, u get b=3, then rewrite, y=1x+3
KatrinaKaif
  • KatrinaKaif
Now lets plug in for m as well, giving us: (y - 1) = 1 (x - (-2)
KatrinaKaif
  • KatrinaKaif
(y- 1) = 1 (x + 2) is what it becomes when simplified.
anonymous
  • anonymous
yeah so 1=1x-2?
anonymous
  • anonymous
im not following ur way, katrina..... u lost me lol
KatrinaKaif
  • KatrinaKaif
First: You forgot about the "y" before 1 = 1x - 2
KatrinaKaif
  • KatrinaKaif
Second: Its y - 1 = 1x + 2 (1x PLUS 2)
anonymous
  • anonymous
(y- 1) = 1 (x- (-2) y - 1 = 1 (x + 2) y - 1 = 1x + 2 <<
KatrinaKaif
  • KatrinaKaif
Lol Yep.
anonymous
  • anonymous
got cha, i think the equation y=mx+b is way easier to remember
KatrinaKaif
  • KatrinaKaif
Hmm, but you have to begin with : (y-y1) = m (x-x1)
anonymous
  • anonymous
OH I UNDERSTAND THANK YOU!!!!!!

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