SEARCH THIS BLOG :-)

Saturday, 21 November 2015

GROVE PRELIM 2U/3U TEST YOURSELF 8 - Q18

$y={1\over 3}x^{-1}$
$y'=-{1\over 3}x^{-2}$
$y'=-{1\over 3x^2}$

$y'=-{1\over 3\left({1\over 6}\right)^2}=-{36\over 3}=-12$

When $x=1/6$, $y=1/(3(1/6))=2$

$y-2=-12(x-1/6)$
$y-2=-12x+2$
$12x+y-4=0$

JH :-)

No comments:

Post a Comment