find the slope of the line passing through the points (-7,-4) and (-1, -10).
2006-10-11 09:44:40 · 6 answers · asked by Malina 1 in Science & Mathematics ➔ Mathematics
Well step 1 find the slope 'm'
m = (-4+10)/(-7+1) = 6/-6 = -1
Step 2 find Y intercept 'b'
y = mx + b
Use one poing to find 'b'
-10 = -1(-1) + b
b = -11
Now plug in b and m
y = -x -11
2006-10-11 09:46:33 · answer #1 · answered by Mariko 4 · 0⤊ 0⤋
When you have two points, slope is change in y/change in x.
So, (-4--10)/(-7--1) = (-4+10)/(-7+1) = 6/-6 = -1
So your slope is -1
2006-10-11 16:48:57 · answer #2 · answered by danjlil_43515 4 · 0⤊ 0⤋
subtract the y values and divide by the subtracted x values
(-4-(-10))/(-7-(-1))=-1 is the slope
2006-10-11 16:51:12 · answer #3 · answered by guy198 2 · 0⤊ 0⤋
The slope is -1.
The formula for slope (m) is the difference in y coordinates over the difference in x coordinates:
....... y2 - y1
m = ------------
....... x2 - x1
You have two points:
(x1, y1) = (-7, -4)
(x2, y2) = (-1, -10)
So just plug it into the formula
....... -10 - (-4)
m = ------------
....... -1 - (-7)
....... -10 + 4
m = ------------
....... -1 + 7
....... -6
m = ---
....... 6
m = -1
The slope is a downward slope, -1
2006-10-11 16:49:24 · answer #4 · answered by Puzzling 7 · 2⤊ 0⤋
[(-10) - (-4)] / [(-1) - (-7)] = (-6) / (6)= -1 = m = slope
2006-10-11 16:48:50 · answer #5 · answered by accrv 2 · 0⤊ 0⤋
m=slope=(y2-y1)/(x2-x1)
m=((-10)-(-4))/((-1)-(-7))
m=-6/6=-1
2006-10-11 16:55:15 · answer #6 · answered by Inferno13 6 · 0⤊ 0⤋