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01-05-2016
Mathematics

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the line l, passes through point A, {2,5} and has gradient - 1/2 find and equation of l, giving your in answer in the form y=mx+c

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01-05-2016

m=slope= gradient
c=y intercept

(x,y)
(2,5)
x=2
y=5 is one solution
and m=-1/2

input

5=-1/2(2)+c
5=-2/2+c
5=-1+c
add 1
6=c

equaton is y=-1/2x+6

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