Chapter 1 Linear Equations And Graphs Worksheet With Answers Page 15
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37Point-Slope Form
The point-slope form of the equation of a line is
y y
m x x
(
)
1
1
where m is the slope and (x
, y
) is a given point.
1
1
It is derived from the definition of the slope of a line:
Cross-multiply and
y
y
2
1
m
substitute the more
x
x
general x for x
2
1
2
Barnett/Ziegler/Byleen Business Calculus 12e
15
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