f(x)=ax.x + bx +c
find the extreme value by geometry(I do not want calculus)
HELP ME
2007-07-04 04:45:15 · 4 answers · asked by Reza 1 in Science & Mathematics ➔ Mathematics
The x coordinate of the vertex of that parabola is
x = -b / 2a
The vertex is a local minimum if a > 0
and a local maximum if a < 0
2007-07-04 04:49:04 · answer #1 · answered by whitesox09 7 · 1⤊ 0⤋
Plot f(x) on the y - axis and x on the x - axis. The highest value of y is the maximum and the lowest value (either + or -ve) is the minimum.
You need the values of a, b and c so that you can calculate y for various values of x.
2007-07-04 12:00:02 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
the value of this would be
f'(x) = 2ax +b
2007-07-04 12:05:13 · answer #3 · answered by Aslan 6 · 0⤊ 0⤋
use geometry.
2007-07-04 12:07:18 · answer #4 · answered by Ξlectronegative™дtif® 2 · 0⤊ 1⤋