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15-05-2018
Mathematics

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which equation is an equivalent form of y=x^2-2x-15?

a) y=(x-1)^2 -16

b) y=(x-1)^2 -14

c) y=(x+1)^2 -16

d)y=(x+1)^2 -14

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Respuesta :

17-05-2018

[tex]y=x^2-2x-15=x^2-2\cdot x\cdot1+1^2-1^2-15=(x-1)^2-16[/tex]

Answer: a) y = (x - 1)² - 16

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