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19 November, 06:24

Y = - 1/2 (x+10) ^2+14 Find the range

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  1. 19 November, 06:50
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    Step-by-step explanation:

    y=-1/2 (x+10) ^2+14

    2y = - (x+10) ^2+28

    (x+10) ^2=28-2y

    L. H. S. is positive.

    so 28-2y≥0

    28≥2y

    or 2y≤28

    or y≤ 14

    Range is (-∞,14]
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