GoodwrenchGM3 GoodwrenchGM3

15-02-2017
Mathematics

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HELP ASAP
The slope intercept equation of the line that passes through the points (-1,3) and (2,-3)?
Y = [ ] x + [ ]

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15-02-2017

y=mx+b
m=slope
b=yint

slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given
(-1,3) and (2,-3)
slope=(-3-3)/(2-(-1))=(-6)/(2+1)=-6/3=-2

y=2x+b
find b
(-1,3) is a point
when x=-1, y=3
3=2(-1)+b
3=-2+b
add 2
5=b

y=2x+5

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