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anonymous

  • one year ago

Choose the equation of the line passing through the point (-1, 7) and perpendicular to y = -one fourthx - 5. Choose one answer. a. y = -4x - 11 b. y = -4x - 3 c. y = 4x + 11 d. y = 4x + 3

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  1. anonymous
    • one year ago
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    @AbdullahM

  2. anonymous
    • one year ago
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    for this im not sure what the slope would be but i know to just plug the rest in after

  3. AbdullahM
    • one year ago
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    The slopes of 2 perpendicular lines when multiplied would be -1.

  4. anonymous
    • one year ago
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    so -1/4 * 4/1

  5. AbdullahM
    • one year ago
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    Lets say the slope for the line they want us to find is 'y', then: \(\sf\Large \frac{-1}{4} \times y = -1\)

  6. anonymous
    • one year ago
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    hmm

  7. anonymous
    • one year ago
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    4/1

  8. AbdullahM
    • one year ago
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    correct, so the slope if 4, because 4/1 = 4

  9. AbdullahM
    • one year ago
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    What answer choice does that eliminate?

  10. anonymous
    • one year ago
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    a and b

  11. anonymous
    • one year ago
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    now i just plug them in again like the last one?

  12. AbdullahM
    • one year ago
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    exactly :)

  13. anonymous
    • one year ago
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    c?

  14. AbdullahM
    • one year ago
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    Correct \(\ddot\smile\)

  15. anonymous
    • one year ago
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    @AbdullahM do you know anything about correlations?

  16. AbdullahM
    • one year ago
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    Somethings about it, post your question let me see :)

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