Linear Equations
ACT · Flashcards · Recall
ACT · FLASHCARDS
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QUESTION
What is the slope of a line through
(
x
1
,
y
1
)
(x_1,y_1)
(
x
1
,
y
1
)
and
(
x
2
,
y
2
)
(x_2,y_2)
(
x
2
,
y
2
)
if
x
1
=
x
2
x_1=x_2
x
1
=
x
2
?
QUESTION
What condition on slopes
m
1
m_1
m
1
and
m
2
m_2
m
2
guarantees two nonvertical lines are perpendicular?
QUESTION
What is the equation of a line with slope
m
m
m
and y-intercept
b
b
b
?
Tap to flip before you grade
ANSWER
y
=
m
x
+
b
y=mx+b
y
=
m
x
+
b
. Direct application of slope-intercept form.
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