find the intersection between:?

0 ⤊

find the intersection between:?

f(x) = 190 - 0.2x
g(x) = 25e^(0.005x)

2007-02-24 21:17:02 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

f(x) = 190 -0.2*x = g(x)
= 25 * e^(0.005 *x)
= 25 * exp( 0.005 * x)
You can do it graphically or by numerical solution. Graphically, plot both the functions f(x) and g(x) and find the intersection of the graphs.

By numerical methods using maple we get :
x = 322.641031431579438312234546387

there is no simple way to solve it analytically.

Cheers.

2007-02-24 22:46:02 · answer #1 · answered by Dalilur R 3 · 0⤊ 0⤋

You may solve this in a graphic way too

Ana

2007-02-25 02:27:11 · answer #2 · answered by Ilusion 4 · 0⤊ 0⤋

Set f(x) = g(x) and solve for x. It's just that simple.

Doug

2007-02-24 21:42:28 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋