2006-06-14 16:35:27 · 13 answers · asked by nkavalsky 1 in Science & Mathematics ➔ Mathematics
if a line has the equation px+qy=r
then the slope of the line is -q/p
2006-06-14 18:18:23 · answer #1 · answered by Apoorva 3 · 0⤊ 0⤋
well, if u now the rise and run of the line u can determine the slope by doing rise divided by the run. say that u know the line is 9 cm long and from 0 to 9cm on the graph it rises 4, then u divede 9 by 4 and get the slope.
2006-06-14 23:40:45 · answer #2 · answered by answernaut 2 · 0⤊ 0⤋
If you have an equation, you can rewrite it in the form of y=mx+b where m will be the slope and b will be the y-intercept. If you don't have either an equation or two points on the line, you're sunk.
2006-06-14 23:40:36 · answer #3 · answered by just♪wondering 7 · 0⤊ 0⤋
y=f(x)
slope of the equation is
the first deriviative of f(x)
let m=slope
m=f'(x)
for any point x=x1,
the slope of the eqaution f(x)
is m = f'(x1).
2006-06-15 15:11:47 · answer #4 · answered by JosyMaude 3 · 0⤊ 0⤋
Know m.
y = mx + b
m is the slope
2006-06-14 23:40:14 · answer #5 · answered by dullorb 3 · 0⤊ 0⤋
It's impossible.
x and y have to exist in order to find the slope.
The points on the graph are (x, y).
Pick any two points: (x1, y1) and (x2, y2)
Then m = y2-y1 / x2-x1
2006-06-14 23:39:03 · answer #6 · answered by Anonymous · 0⤊ 0⤋
ya kant find slop w/o x & y, unless ya got other variables for it, u kant find the slope
2006-06-14 23:41:37 · answer #7 · answered by Answer Givererer. 2 · 0⤊ 0⤋
y=2x+3
slope is 2
or
2y-4x=6
u do
6+4x=2y
then
3+2x=y
slope is 2
2006-06-14 23:48:01 · answer #8 · answered by jeryl m 1 · 0⤊ 0⤋
you cant unless you have coordinates or the x and y intercepts
2006-06-14 23:38:59 · answer #9 · answered by JIMMY j 5 · 0⤊ 0⤋
subsitute other variables for x and y.
2006-06-14 23:37:56 · answer #10 · answered by Michael 2 · 0⤊ 0⤋