anonymous
  • anonymous
Write the equation of the line that passes through (-1, 5) with a slope of 2 in standard form
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
A. -2x - y = -7 B. 2x - y = -7 C. 2x - y = 11 D. -2x + y = -11
anonymous
  • anonymous
Can someone actually work through the problem with me and help me learn it?
RagingSquirrel
  • RagingSquirrel
Give me a minute to type up a reply.

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anonymous
  • anonymous
okay, I also one thats about the same but in point slope form if you could help me on that also!
anonymous
  • anonymous
thank you so much by the way!
RagingSquirrel
  • RagingSquirrel
Let's do point slope first. I don't know if you'll understand the first question without it.
jennithemeani
  • jennithemeani
First thing you have to do is find for B to find for B you need to use point slop form y-y1=m(x-x1) Fill it in and you get y-5= 2(x+1)
DanJS
  • DanJS
Are you familiar with the three basic form for a line?
jennithemeani
  • jennithemeani
oops no wait sorry about that doing too many things at once to find b you have to put in y=mx+b which would be 5=2(-1)+b
jennithemeani
  • jennithemeani
Which you would make 5=-2+B b=7
DanJS
  • DanJS
k, if you have questions later ill proly see it
DanJS
  • DanJS
What are you doing needing to find the y-intercept. They want the standard form of a line. You have the point-slope form copied down right, all you have to do is rearrange that to ax + by = c standard form
DanJS
  • DanJS
point-slope equation from givens y-y1 = m(x-x1) y - 5 = 2(x - (-1)) move things around to standard form... y - 5 = 2x + 2 -2x + y = 2 + 5 -2x + y = 7 which isn't a choice, multiply everything by -1 2x - y = -7 that's it

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