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anonymous

  • 5 years ago

2. Given that the points A, B and C have the coordinates A (0, 6), B (5, 11) and C (2, 3). Find the gradients of AB, AC and BC. Are the three points collinear?

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  1. amistre64
    • 5 years ago
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    co-linear? not even close

  2. amistre64
    • 5 years ago
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    the gradients/slopes are point-point and put y/x

  3. amistre64
    • 5 years ago
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    0, 6 -5,-11 ------ -5, -5; slope = -5/-5 = 1

  4. amistre64
    • 5 years ago
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    2,3 -0,-6 ------ 2,-3 ; slope = y/x = -3/2

  5. amistre64
    • 5 years ago
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    5,11 -2,-3 ------ 3,8 ; slope = y/x = 8/3

  6. amistre64
    • 5 years ago
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    since they have different slopes; they are not linear at all

  7. anonymous
    • 5 years ago
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    oh okay thanks so much!

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