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Mathematics 7 Online
OpenStudy (anonymous):

Let f(x)= {2x^2-4x x<=5/4 {x-(25/8) 5/4

OpenStudy (anonymous):

what is f+?

OpenStudy (anonymous):

I go this one correct!

OpenStudy (anonymous):

it's the deriv of x-(25/8) which is one, so doesn't matter what you plug in for x, it will always be 1

OpenStudy (anonymous):

f+ is coming from the right side, greater than 0

OpenStudy (anonymous):

from the right the derivative is 1

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