Homework Help: Calculus

Posted by Abigail on Tuesday, June 15, 2010 at 9:07am.

Determine the equation of the line perpendicular to the tangent line to the function f(x) = 1/2 (e^x)at the point on the curve where x=ln3.

Calculus - Reiny, Tuesday, June 15, 2010 at 9:17am
f '(x) = (1/2)e^x

sub in x = ln3 and you will have the slope
find y when x = ln3

so now you have the slope and a point, use your
y = mx + b method to find the tangent.

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