What is the slope of the line that passes through the points M (3,5) and N (1,8)?
2006-12-14 12:28:15 · 9 answers · asked by james 3 in Science & Mathematics ➔ Mathematics
What is the slope of the line that passes through the points M (-3,5) and N (1,8)?
sry i wrote it wrong :(
2006-12-14 12:32:34 · update #1
What is the slope of the line that passes through the points M (-3,5) and N (1,8)?
2006-12-14 12:33:00 · update #2
m = Δy / Δx
Δy = y2 - y1 = 8 - 5 = 3
Δx = x2 - x1 = 1 - 3 = -2
So the slope is -3/2 or -1½
2006-12-14 12:31:10 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
M (3,5) and N (1,8)
slope=(5-8)/(3-1)=-3/2
2006-12-14 20:42:01 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
Well, you can figure out how fast it rises or falls, the slope, by calculating the amount its x value and its y value changes as the line moves from M to N. for the x value it seems to change from 3 to 1, a change of -2 and for the y value it changes from 5 to 8 or +3. Since the slope is the ratio of the change in y divided by the change in x, it would be 3/-2 or -3/2 or minus three halves. m=-3/2
2006-12-14 20:37:12 · answer #3 · answered by the moose 1 · 0⤊ 0⤋
two points are given M(-3,5) and N(1,8)
so M(x1,y1) and N(x2,y2)
use the slope formula for two points of the line.
that is
m = (y2-y1)/(x2-x1)
m = (8-5)/(1+3)
m = 3/4
slope of the lines are 3/4
2006-12-14 20:53:06 · answer #4 · answered by latha 2 · 0⤊ 0⤋
Simple:
you use the formula y1-y2/x2-x1
so the slope would be 8-5/1-3
-3/2
your slope is -3/2
2006-12-14 20:32:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
4/5
2006-12-14 20:30:49 · answer #6 · answered by Kelly S 1 · 0⤊ 1⤋
slope = rise / run
rise = 5-8 = -3
run = 3-1 = 2
slope = -3/2 = m
y = mx + b
then plug in one of your points
5 = -3/2 (3) + b
b = 9.5
Y = -3/2x + 9.5
2006-12-14 20:34:53 · answer #7 · answered by Jeremy K 2 · 0⤊ 0⤋
(8-5)/(1 - 3) = 3/-2
2006-12-14 20:30:50 · answer #8 · answered by Anonymous · 0⤊ 0⤋
I don't care what your numbers are, you can use:
http://www.wlhs.us/geo/distanceFormula.shtml
and it will calculate it for you and show you the steps.
2006-12-14 20:35:29 · answer #9 · answered by gerardw 2 · 0⤊ 0⤋