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Mathematics 27 Online
OpenStudy (anonymous):

Find the vertex of the graph of the function. f(x) = (x - 10)^2 - 8

OpenStudy (anonymous):

Compare it with: \[f(x) = (x - h)^2 + k\] Can you tell me on comparing what is in place of h and k in your question ??

OpenStudy (anonymous):

h is -20 k is is -8

OpenStudy (anonymous):

k is right.. But how you got h = 20 ?? Just compare..

OpenStudy (anonymous):

u just differentiate that

OpenStudy (anonymous):

i mean 100

OpenStudy (anonymous):

Why are you squaring??

OpenStudy (anonymous):

idk i have to?

OpenStudy (anonymous):

Need not to do anything.. Just compare them..

OpenStudy (anonymous):

ok so its - 10

OpenStudy (anonymous):

Little mistake..

OpenStudy (anonymous):

:-/ ok vertex is jus the xtreme value may be max or min since tha function is always incresing nd has no upper bound xtreme shud be minimum........nd the smallest value is @ x = 10

OpenStudy (anonymous):

10

OpenStudy (anonymous):

You have compared x with x, - with - and h with ???

OpenStudy (anonymous):

Yes now you are right..

OpenStudy (anonymous):

So: \((h,k) = (10, -8)\) This is the required vertex..

OpenStudy (anonymous):

wat do i do next

OpenStudy (anonymous):

You have found the vertex that is what question is asking to find..

OpenStudy (anonymous):

thanks :)

OpenStudy (anonymous):

thats it

OpenStudy (anonymous):

Yeah that is it.. Remember the equation I have given above.. That will help you to solve other problems too..

OpenStudy (anonymous):

ok :)

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