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BioHazard9064

  • one year ago

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  1. BioHazard9064
    • one year ago
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    Choose the equation of the line passing through the point (-4, -2) and perpendicular to y = -x + 6. A. y = -x + 6 B. y = x - 6 C. y = -x - 2 D. y = x + 2

  2. welshfella
    • one year ago
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    Hint: the line perpendicular to y = mx + b has a slope of - 1/m

  3. BioHazard9064
    • one year ago
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    ok

  4. welshfella
    • one year ago
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    so for y = -x + 6 the slope is -1 so the slope of a line perpendicular to it would be ?

  5. BioHazard9064
    • one year ago
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    y = x - 6

  6. welshfella
    • one year ago
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    well the slope would be 1 / (-(-1) = 1 so the line would be y = x + something but why do you think its y = x + 6/

  7. BioHazard9064
    • one year ago
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    So D then

  8. welshfella
    • one year ago
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    to find which equation is correct you need to plug in the coordinates of the point (-4,-2) and see if it fits

  9. BioHazard9064
    • one year ago
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    how do I do

  10. BioHazard9064
    • one year ago
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    that

  11. welshfella
    • one year ago
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    |dw:1439503328195:dw|

  12. welshfella
    • one year ago
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    so do those values of x and y satisfy the equation?

  13. welshfella
    • one year ago
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    y = -2 x - 6 = -4-6 = ?

  14. welshfella
    • one year ago
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    does y = x - 6 for these numbers?

  15. BioHazard9064
    • one year ago
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    No

  16. welshfella
    • one year ago
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    that correct y = -2 and x - 6 = -10 so this cannot be the correct equation

  17. BioHazard9064
    • one year ago
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    so would it be D. y = x + 2

  18. welshfella
    • one year ago
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    if we try y = x + 2 ;- y = -1 x + 2 = -4 +2 = -2

  19. welshfella
    • one year ago
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    sorry thats y = -2

  20. welshfella
    • one year ago
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    so y = x+ 2 is correct

  21. BioHazard9064
    • one year ago
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    Ok thanks

  22. welshfella
    • one year ago
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    yw

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