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Mathematics
Gianni Sharp
1 January, 01:34
F (x) = - 2x^2 + 8x - 12 in vertex form
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Cuddles
1 January, 02:32
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f (x) = - 2x² + 8x - 12
y = - 2x² + 8x - 12
+ 12 + 12
y + 12 = - 2x² + 8x
y + 12 - 8 = - 2x² + 8x - 8
y - 4 = - 2 (x²) - 2 (-4x) - 2 (4)
y - 4 = - 2 (x² - 4x + 4)
y - 4 = - 2 (x² - 2x - 2x + 4)
y - 4 = - 2[x (x) - x (2) - 2 (x) - 2 (-2) ]
y - 4 = - 2[x (x - 2) - 2 (x - 2) ]
y - 4 = - 2 (x - 2) (x - 2)
y - 4 = - 2 (x - 2) ²
+ 4 + 4
y = - 2 (x - 2) ² + 4
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