Which system is equivalent to y=-2x^2 y=x-2 a) y=-2y^2 x=y-2 b) y=-2y^2+2 x=y+2 c) y=-2y^2-8y-8 x=y+2 d) y=-2

Question

Which system is equivalent to y=-2x^2 y=x-2

a) y=-2y^2 x=y-2
b) y=-2y^2+2 x=y+2
c) y=-2y^2-8y-8 x=y+2
d) y=-2y^2+8y-8 x=y-2

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Thu Thảo 4 years 2021-07-21T13:56:41+00:00 1 Answers 10 views 0

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  1. Giakhanh
    0
    2021-07-21T13:58:25+00:00
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    Answer:

    answer C

    Step-by-step explanation:

    \left\{\begin{array}{ccc}y&=&-2x^2\\y&=&x-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2(y-2)^2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2y^2-8y-8\\\end{array}\right.\\\\

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