. For the function y= -5×2 – 10x + c, the vertex is (-1,8). What is c? F. -13 G. -3 – J. 13 H. 3​

Question

. For the function y= -5×2 – 10x + c, the vertex is (-1,8). What is c? F. -13 G. -3 – J. 13 H. 3​

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Helga 3 years 2021-09-03T05:45:03+00:00 1 Answers 11 views 0

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  1. Edana
    0
    2021-09-03T05:46:15+00:00
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    Answer:

    c=3

    Step-by-step explanation:

    8=-5(-1)^2-10(-1)+c

    8=5+c

    c=3

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )