Given the points (4,3) and (5, 5),
substitute values into the formula.
Use the distributive property.
Use the addition property of equality.
Combine like terms.
The slope is 2.
(y - 5) = 2(x - 5)
y - 5 = 2x -10
-2x + y = -10 + 5
-2x + y = - 5
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