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anonymous

  • one year ago

Choose the point-slope form of the equation below that represents the line that passes through the points (−3, 2) and (2, 1). y + 3 = −5(x − 2) y − 2 = −5(x + 3) y + 3 = −one fifth(x − 2) y − 2 = −one fifth(x + 3)

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  1. Nnesha
    • one year ago
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    use the same formula to find slope \[\huge\rm \frac{ y_2 -y_1 }{ x_2 -x_1 }\] formula to find slope now plug x's and y's into the formula (x_1 , y_1 )(x_2 ,y_2)

  2. anonymous
    • one year ago
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    can you give me a little help

  3. Nnesha
    • one year ago
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    sure. in this order pair first number is x-coordinate and 2nd one is y so |dw:1442234657789:dw|

  4. Nnesha
    • one year ago
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    x_1 = -3 y_1 = 2 now look at this order pair (2,1) what's x and what is y?

  5. anonymous
    • one year ago
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    -3,1

  6. Nnesha
    • one year ago
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    hmm x= what y= ?? in the order pair ( 2,1) there isn't any -3

  7. Nnesha
    • one year ago
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    like i said first number in the order pair represent x value

  8. Nnesha
    • one year ago
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    so in this order pair (2,1) which one is x and which one is y?

  9. anonymous
    • one year ago
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    i'm very confused

  10. Nnesha
    • one year ago
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    okay what u didn't understand ? :=)

  11. anonymous
    • one year ago
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    x_1 = -3 y_1 = 2 now look at this order pair (2,1) what's x and what is y?

  12. Nnesha
    • one year ago
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    |dw:1442235080851:dw| first number in the order pair represent x-coordinate so in this order pair (-3,2) x= -2 and y =2

  13. Nnesha
    • one year ago
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    so in this order x-coordinate is what ?(2,1) what number is replaced with the x ? x= ?? y= ??

  14. anonymous
    • one year ago
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    wait nevermind I got the answer

  15. Nnesha
    • one year ago
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    okay good what did you get ? and plz show ur work as well

  16. anonymous
    • one year ago
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    The equation is of the form y - y1 = m(x - x1) (x1, y1) is either of the given points; "m" is the slope. Find the slope. m = (y2-y1)/(x2-x1) ....= (1-2)/(2+3) = -1/5 However, this slope is not in any of the options, and I checked my work, so either you mistyped something, maybe one of the points, or the people making the book made a mistake. Plug in either point for y1 and x1 in the equation. Apparently they used (-3, 2). y - 2 = -(1/5)(x - (-3)) y - 2 = -(1/5)(x + 3) so the last one is the answer

  17. Nnesha
    • one year ago
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    nice copy paste.

  18. Nnesha
    • one year ago
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    what do you mean ` However, this slope is not in any of the options, and I checked my work, so either you mistyped something, maybe one of the points, or the people making the book made a mistake` ?? i mistyped something ?

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