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anonymous

  • one year ago

Lines K and P are perpendicular, neither is vertical and P passes through the origin. Which is greater? A. The product of the slopes of lines K and P. B. The product of the y-intercepts of lines K and P.

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  1. anonymous
    • one year ago
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    B is greater but I need to know why.

  2. anonymous
    • one year ago
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    I'm guessing this is what it looks like. |dw:1441208259429:dw|

  3. anonymous
    • one year ago
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    For B is it 0 because line P passes through the oirgin (0, 0) and any y-intercept that K may have will automatically be 0 because of the P passing through the origin?

  4. AravindG
    • one year ago
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    What is the sign of product of slopes?

  5. anonymous
    • one year ago
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    A is gonna be a negative since anything multiplied by the perpendicular will give it a negative product.

  6. AravindG
    • one year ago
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    Very good. Now what are the y intercepts of both these lines?

  7. anonymous
    • one year ago
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    I know for line P it'll be 0 but I don't know for line K. But is the product gonna be 0 regardless because of what i stated above?

  8. AravindG
    • one year ago
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    Of course 0 times anything=0 !!

  9. AravindG
    • one year ago
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    So you dont have to bother about the other one.

  10. anonymous
    • one year ago
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    okay but line K will have a negative y-intercept right?

  11. AravindG
    • one year ago
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    Right

  12. anonymous
    • one year ago
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    ok got it thanks

  13. AravindG
    • one year ago
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    Yw :)

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