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freemap

  • one year ago

The function d(s) = –5s – 15 models the depth, in feet, of a rock that Dante dropped into a lake s seconds after he lost sight of the rock. What is the meaning of the x-intercept? A. Dante saw the rock for 15 s before losing sight of it. B. Dante saw the rock for 3 s before losing sight of it. C. Dante lost sight of the rock when it was 15 ft below the lake’s surface. D. Dante lost sight of the rock when it was 3 ft below the lake’s surface.

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  1. texaschic101
    • one year ago
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    hmmm... d(s) = -5s - 15 y = -5s - 15 x intercept can be found by subbing in 0 for y 0 = -5s - 15 5s = -15 s = -3....so the x int is -3 My guess would be D.....but you might better get a second opinion

  2. freemap
    • one year ago
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    D I believe is right also, Thanks

  3. texaschic101
    • one year ago
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    don't thank me yet.....it might not be right

  4. freemap
    • one year ago
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    ok, well thanks for trying

  5. texaschic101
    • one year ago
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    lol.....thats better :)

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