SOLUTION: Find the equation of a tangent line to the function y={{{1/x^3}}} at the point (2,1/8) Thanks for any help

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Find the equation of a tangent line to the function y={{{1/x^3}}} at the point (2,1/8) Thanks for any help      Log On


   

Question 690106: Find the equation of a tangent line to the function y=1%2Fx%5E3 at the point (2,1/8)
Thanks for any help
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Rewrite your function.



Then use the power rule:



Then



Finally, use the point-slope form, where is the slope and is the point.



John

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