Mathematics
Junior High
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[6] 次の関数y=a(x-p)2+q の形に変形しなさい。
[思·判・表] (P88~89 参照)
(1)y = x2 - 2x
(2) y = x2 + 4x + 1
(3)y = 2x2 + 8x
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(4) y = -x2 + 8x + 2
[7
Answers
Answers
y=(x-1)^2-1
y=(x+2)^2-3
y=2(x^2+4x)
=2((x+2)^2-4)
=2(x+2)^2-8
y=-(x^2-8x)+2
=-((x-4)^2-16)+2
=-(x-4)^2+18
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