# Pre Calculus Help. I need help on a graphing circles problem with equation of line

*label*Calculus

*timer*Asked: Feb 20th, 2015

**Question description**

I need to write the equation of the tangent line to ciricle that is x^2+y^2=25 at x=1.

Anonymous

I need to write the equation of the tangent line to ciricle that is x^2+y^2=25 at x=1.

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