Posted by **joshua** on Wednesday, January 5, 2011 at 8:38pm.

Write an equation in slope intercept form of the line that passes through (4, 1) and (5, -1).

- Algebra -
**Henry**, Friday, January 7, 2011 at 7:24pm
(4, 1), (5, -1).

m = (-1 - 1) / (5 - 4) = -2 / 1 = -2.

Y = mX + b.

Y = -2*4 + b = 1,

-8 + b = 1,

b = 1+ 8 = 9.

Eq: Y = -2X + 9.

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