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Mathematics 15 Online
OpenStudy (anonymous):

The functions f(x) = –(x − 1)2 + 5 and g(x) = (x + 2)2 − 3 have been rewritten using the completing-the-square method. Is the vertex for each function a minimum or a maximum?

OpenStudy (anonymous):

cpuld you help me @lochana

Vocaloid (vocaloid):

if there's a negative sign in front of the (x)^2 part, then vertex is a maximum if there's no negative sign, then the vertex is a minimum

OpenStudy (anonymous):

But it is different on both equations so which would it be

Vocaloid (vocaloid):

|dw:1447263905027:dw|

OpenStudy (anonymous):

so it would be a maximum because it was rewritten without the negative sign

OpenStudy (anonymous):

?

Vocaloid (vocaloid):

??? f(x) has a negatiive sign in front, so its a maximum g(x) has no negative sign in front, so it's a minimum

Vocaloid (vocaloid):

|dw:1447264046054:dw| there are two different functions

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