SOLUTION: http://media261.acellus.com/Library/00001230_92_731_A1.png
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Algebra.Com
Question 1001484: http://media261.acellus.com/Library/00001230_92_731_A1.png
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Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
(x1,y1) = (2000,1000)
(x2,y2)= *(2012,3400)
slope = (y2-y1) / (x2-x1) = 2400 / 12 = 200
y = mx + b is slope intercept form of linear equation.
m is the slope.
b is the y-intercept.
replace m with 200 and you get:
y = mx + b becomes y = 200x + b
replace y and x with the values of one of the coordinate points and then solve for b.
we'll use (x1,y1) = (2000,1000)
y = mx + b becomes 1000 = 200*2000 + b
solve for b to get b = 1000 - 200*2000 = 1000 - 400000 = -399000
y = mx + b becomes y = 200x - 399000
when x = 2000, y = 200*2000 - 399000 = 400000 - 399000 = 1000
when x = 2012, y = 200*2012 - 399000 = 402400 - 399000 = 3400
your equation is y = 200x - 399000.
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