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Key Equations
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Aa
Key Equations
slope-intercept form of a line
f
(
x
)
=
m
x
+
b
f
(
x
)
=
m
x
+
b
slope
m
=
change in output (rise)
change in input (run)
=
Δ
y
Δ
x
=
y
2
−
y
1
x
2
−
x
1
m
=
change in output (rise)
change in input (run)
=
Δ
y
Δ
x
=
y
2
−
y
1
x
2
−
x
1
point-slope form of a line
y
−
y
1
=
m
(
x
−
x
1
)
y
−
y
1
=
m
(
x
−
x
1
)
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