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millitarygirl96

  • 2 years ago

2 slope problems PLEASE help Write the equation of the line with a slope of -1/3 and passing through the point (6, -4). Write the equation of the line passing through the points (-6,1) and (-4,2).

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  1. zordoloom
    • 2 years ago
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    For the first equation, use the point slope formula and plug in the given data

  2. zordoloom
    • 2 years ago
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    y+4=(-1/3)(x-6) ----->Now rearrange this if it is required. You can leave it like this since it is correct.

  3. zordoloom
    • 2 years ago
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    And for the second part, find the slope between the two points: (-6,1) and (-4,2).. And use one of the points to form the equation.

  4. millitarygirl96
    • 2 years ago
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    it has 2 b completely simplified and 4 the first 1 got y=-1/3x-6

  5. zordoloom
    • 2 years ago
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    huh?

  6. zordoloom
    • 2 years ago
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    It would have helped if you would spell out the words. And no, it is not y=-1/3x-6. Instead it is y=-1/3x-2

  7. millitarygirl96
    • 2 years ago
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    oh ok I see what I did wrong and sry im trying 2 type with 1 hand and it takes longer so im using short cuts

  8. zordoloom
    • 2 years ago
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    For the second part, can you find the slope between the two points?

  9. zordoloom
    • 2 years ago
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    The slope would be 1/2. Now pick either point and write the equation.

  10. zordoloom
    • 2 years ago
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    y-2=1/2(x+4)----> Now rearrange this and get y=1/2x+4

  11. zordoloom
    • 2 years ago
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    Hope this helped.

  12. millitarygirl96
    • 2 years ago
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    ok thanks :) do you understand this problem : Write the equation of the line with an undefined slope, passing through the point (2, 5).

  13. millitarygirl96
    • 2 years ago
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    I don't understand how u can write an undefined slope

  14. zordoloom
    • 2 years ago
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    undefined slope means the line is vertical. Therefore, the equation for the line would be y=2

  15. zordoloom
    • 2 years ago
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    wait, x=2.

  16. millitarygirl96
    • 2 years ago
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    so you don't do anything with the 5?

  17. zordoloom
    • 2 years ago
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    y=2 would be horizontal, so it would be x=2

  18. zordoloom
    • 2 years ago
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    5 is a point above the 2. Only the first variable matters, which is 2.

  19. millitarygirl96
    • 2 years ago
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    oh ok :) thank u sooo much

  20. zordoloom
    • 2 years ago
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    |dw:1359123474978:dw|

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