Homework Help: math

Posted by Sébastien on Monday, March 5, 2012 at 1:02pm.

Hello, I need help finding the intersection points B and C of the tangent A with for horizontal axis B and the vertical axis C.

hyperbola: f (x) = 1 / x

A = (1, 1)

Thanks for your help .

math - Steve, Monday, March 5, 2012 at 1:17pm
f' = -1/x^2

at (1,1) y' = -1

so, you have a point and a slope.

y-1 = -1(x-1)

you can probably find the intercepts from here, no?
math - Sébastien, Monday, March 5, 2012 at 1:46pm
B = (2, 0) and C = (0, 2) but we have explained how to find this result.

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