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anonymous

  • one year ago

Write the equation of the line that passes through (-1, 5) with a slope of 2 in standard form

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  1. anonymous
    • one year ago
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    A. -2x - y = -7 B. 2x - y = -7 C. 2x - y = 11 D. -2x + y = -11

  2. anonymous
    • one year ago
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    Can someone actually work through the problem with me and help me learn it?

  3. RagingSquirrel
    • one year ago
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    Give me a minute to type up a reply.

  4. anonymous
    • one year ago
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    okay, I also one thats about the same but in point slope form if you could help me on that also!

  5. anonymous
    • one year ago
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    thank you so much by the way!

  6. RagingSquirrel
    • one year ago
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    Let's do point slope first. I don't know if you'll understand the first question without it.

  7. jennithemeani
    • one year ago
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    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)

  8. DanJS
    • one year ago
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    Are you familiar with the three basic form for a line?

  9. jennithemeani
    • one year ago
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    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

  10. jennithemeani
    • one year ago
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    Which you would make 5=-2+B b=7

  11. DanJS
    • one year ago
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    k, if you have questions later ill proly see it

  12. DanJS
    • one year ago
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    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

  13. DanJS
    • one year ago
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    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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