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dumbsearch2

  • one year ago

Geometry theorem problem:

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  1. dumbsearch2
    • one year ago
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  2. anonymous
    • one year ago
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    It looks like this is asking you to prove that segments AC and BC are perpendicular using the slope formula. \[m=\frac{ y_2-y_1 }{ x_2-x_1 }\]

  3. dumbsearch2
    • one year ago
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    what would y and x be? @peachpi

  4. anonymous
    • one year ago
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    you'd use the coordinates of the points. For example, A is (-c, 0) so for point A, x = -c and y = 0.

  5. anonymous
    • one year ago
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    so to find the slope of AC, the points to plug into the formula would be (-c, 0) and (a, b)

  6. dumbsearch2
    • one year ago
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    (b)/(a+c) is not in any of the answer choices @peachpi

  7. dumbsearch2
    • one year ago
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    I used that formula but I don't get the answer.

  8. anonymous
    • one year ago
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    are you sure, b/(a + c) looks like it's part of 3 of the answer choices

  9. anonymous
    • one year ago
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    so you have the slope of AC. Find the slope of BC

  10. dumbsearch2
    • one year ago
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    does it equal = -1 or = 1?

  11. anonymous
    • one year ago
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    slopes of perpendicular lines multiply to -1

  12. anonymous
    • one year ago
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    they're opposite reciprocals

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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