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Find the equation of the line through

0 votes

(2,a) and (5,b).?

asked Oct 30, 2014 in ALGEBRA 2 by anonymous

1 Answer

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The points are (0, a) and (5, b).

Substitute (x1, y1) = (0, a) and (x2, y2) = (5, b) in the two points form of line equation: y - y1 = [(y2 - y1)/(x2 - x1)](x - x1).

y - a = [(b - a)/(5 - 0)](x - 0)

y - a = [(b - a)/5]x

5(y - a) = (b - a)x

5y - 5a = (b - a)x

5y = (b - a)x + 5a

y = [(b - a)/5]x +a

The line equation is y = [(b - a)/5]x + a.

answered Oct 30, 2014 by casacop Expert

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