Jkimmvmisha Jkimmvmisha

19-11-2016
Mathematics

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Find the equation of the line that goes through the points (-15, 70) and (5,10)

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syed514 syed514

20-11-2016

The equation of a line is normally of the form: y = mx + b ;
where m = slope and b = y int.
m = 10-70/5+15
= -60/20
= -3
y = -3x + b
plug in any given point:
10 = -15 + b
b = 25

Therefore: y = -3x+25

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