Find point or points on the graph where the tangent line is horizontal.

f(x) = 6x^2+2x-7

h(s) = x^3-2x^2+4x-9

- Oct 25th 2008, 12:16 PMrod789Find point or points on the graph where the tangent line is horizontal.
Find point or points on the graph where the tangent line is horizontal.

f(x) = 6x^2+2x-7

h(s) = x^3-2x^2+4x-9 - Oct 25th 2008, 12:22 PMtreetheta
$\displaystyle f'(x) = 0

$

and

$\displaystyle h'(s) = 0 $

and solve, this is because the slope at the horizantal is equal to zero always. - Oct 26th 2008, 04:28 AMHallsofIvy