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Mathematics 8 Online
OpenStudy (anonymous):

Explain

OpenStudy (anonymous):

OpenStudy (anonymous):

Can someone explain number 6 please

OpenStudy (gorv):

normal means perpendicular

OpenStudy (gorv):

first calculate of slope by using derivative

OpenStudy (gorv):

dy/dx=18x

OpenStudy (anonymous):

okay I got tthat part

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