Find the slope of the line passing through the points (2, –7) and (1, 0).
I'm lost on slopes. can someone explain? Thanks so much :)
2007-07-11 10:39:29 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
use the slope formula
m= y2 - y1 over x2 - x1
m= 0 - (-7) / 1-2
m= 7/-1
m= -7
2007-07-11 10:45:44 · answer #1 · answered by Rose 3 · 0⤊ 0⤋
The slope m of a line passing by way of 2 factors (xsub1, ysub1) and (xsub2, ysub2) is given via m = (ysub2 - ysub1)/(xsub2 - xsub1) So interior the 1st case you have m = (7 - 2)/5 - a million) = 5/4, this is helpful. The slope of the line interior the 2d area is m = (5 - 2)/3 - 7) = 3/(-4) = -3/4, which isn't shown.
2016-10-20 21:39:49 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Slope is basically the rise divided by the run or y (being rise) and x (being run) in this instance you have (2, -7) and (1,0) the slope is thereby computed doing the difference in y divided by the difference in x or (y2-y1) / (x2-x1)... note (2,-7) is (x1,y1) and (1,0) is (x2,y2) thus you get
0 - -7 / (1 - 2) or 7/ -1 so the slope is -7.
2007-07-11 10:47:08 · answer #3 · answered by esvalpo 2 · 0⤊ 0⤋
The formula is m=Delta(Y)/Delta(X). Delta designates the difference between two quantities. In this case: Delta(Y) is Y2-Y1 and Delta(X) is X2-X1. Note that X1 is 2, Y1 is -7, X2 is 1, Y2 is 0
Let's apply the formula then
m = (0 - -7)/ (1-2)
m = -7
2007-07-11 11:06:11 · answer #4 · answered by rabderrahman 1 · 0⤊ 0⤋
it's down 7 over 1. (-7/1) = -7.
To find slope just plot the two points and find the rise over room.
2007-07-11 10:45:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
the slope would be -7 slop is found by (y2-y1)/(x2-x1) and it can be (0-(-7)/(1-2)=-7 or you could do (-7-0)/(2-1) and you will still get the exact same awnser.
2007-07-11 10:47:46 · answer #6 · answered by John D 2 · 0⤊ 0⤋
2-1=1
-7-0=-7
Slope = -1/7
2007-07-11 10:44:43 · answer #7 · answered by Acct. Student 101 2 · 0⤊ 0⤋
if you have grid paper then just plot the points. there is a formula for it but i cant remember... but since the points are only 1 unit away from each other on the x axis, the y value is can be seen going down by 7 per x. so the equation is y=-7x+7
2007-07-11 10:44:40 · answer #8 · answered by Smitty 2 · 0⤊ 0⤋
to find a gradient (or slope) you use the equation:
y=mx+c
where m is the gradient and c is the point where the line crosses the y-axis.
If you rearrange this equation you get,
m= (y-c)/x
So if you draw your graph and plug in the numbers you will find m
Hope this helps
2007-07-11 10:47:45 · answer #9 · answered by l z 3 · 0⤊ 0⤋
m = (y2 - y1) / (x2 - x1)
m = (0 - (-7)) / (1 - 2)
m = 7 / (- 1)
m = - 7
2007-07-14 21:40:29 · answer #10 · answered by Como 7 · 0⤊ 0⤋