Finding the Equation of a Tangent LineDate: 10/6/95 at 17:20:3 From: David Gutierrez Subject: tangent line What is the equation of the tangent line to the graph of f(x)=x^(2/5) at the point (-32,4)? Date: 10/7/95 at 1:47:16 From: Doctor Andrew Subject: Re: tangent line Is this for a calculus course? If so, then you probably want to take a derivative of f at x = -32 to find the slope of the curve. The slope of the curve will be the slope of the tangent line. Once you have a slope and a point, you can write an equation for a line using the point slope form for a line with slope m at (a,b) (y - b) = m(x - a) Good luck! -Doctor Andrew, The Geometry Forum |
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