Linear Functions
ACT · Flashcards · Recall
ACT · FLASHCARDS
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QUESTION
What is the
x
x
x
-intercept of
A
x
+
B
y
=
C
Ax+By=C
A
x
+
B
y
=
C
(with
A
≠
0
A\ne 0
A
=
0
)?
QUESTION
What is the
y
y
y
-intercept of the line
y
=
m
x
+
b
y=mx+b
y
=
m
x
+
b
?
QUESTION
What is the point-slope form of a linear equation through
(
x
1
,
y
1
)
(x_1,y_1)
(
x
1
,
y
1
)
with slope
m
m
m
?
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ANSWER
y
−
y
1
=
m
(
x
−
x
1
)
y-y_1=m(x-x_1)
y
−
y
1
=
m
(
x
−
x
1
)
. Uses known point
(
x
1
,
y
1
)
(x_1,y_1)
(
x
1
,
y
1
)
and slope
m
m
m
.
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