|March 1st, 2009, 12:01 PM||#1|
Joined: Mar 2009
Find eqation of tangent line
Im stuck on a few...
y = 5?x^3 ; when x = 0
( 5th root, in case it doesn't turn out)
p(x) = ax^2 + bx + c ; x = -b/2a ; a, b, and c are constants, a not = 0
|March 1st, 2009, 01:42 PM||#2|
Joined: May 2008
From: Sacramento, California
Re: Find eqation of tangent line
(power rule), so at , .
(power rule again), so at , . This would make sense because the function's vertex is at .
To get the equation of the tangent line, use point-slope (); plug in the slope of the curve at the point for and the coordinates of the point for and . For , the line is undefined, but for , the equation would be .
|eqation, find, line, tangent|
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