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ckallerid

  • one year ago

Help! For the function f(x) = –(x + 1)2 + 4, identify the vertex, domain, and range. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≥ 4. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≤ 4. The vertex is (1, 4), the domain is all real numbers, and the range is y ≥ 4. The vertex is (1, 4), the domain is all real numbers, and the range is y ≤ 4.

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  1. anonymous
    • one year ago
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    The answer is b. With the equation a(x-h)+k = y, the vertex will be (h,k), hence the vertex being (-1,4) As for the range, a is -1, meaning the function will facing downward, and since the vertex represents the maximum or minimum height of this function, we know that the max point will be 4, hence y ≤ 4.

  2. ckallerid
    • one year ago
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    okie thanks! :D

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