find the slope of the line through the given points:(-1,1),(9,0)

Question

find slope of line through the given points:(-1,1) (9,0)

Answer 1

line thru 2 points: (-1,1) & (9,0)

deltax=10, deltay=-1

slope=deltay/deltax=-1/10 or -0.1

Answer 2

Confirmed, slope is -0.1 with a y intercept of 0.9

You can check and visualize your answer here:

http://statsfiddle.info/Graph/SolveLinearEquation?LinearSolutionType=TwoPoints&Point1.X=-1&Point1.Y=1&Point2.X=9&Point2.Y=0

Answer 3

Given (x1,y1)=(-1,1)
(x2,y2)=(9,0)

The slope m=(y2-y1)/(x2-x1)
m=(0-1)/(9+1)
m=-1/10

The equation y=mx+c
here y=1 and x=-1
1=1/10+c
c=9/10

The equation of the slope is,
y=-1/10x+9/10

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