Linear Functions
PSAT Math · Flashcards
PSAT MATH · FLASHCARDS
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QUESTION
Find the equation of the line perpendicular to
y
=
1
4
x
−
3
y=\frac{1}{4}x-3
y
=
4
1
x
−
3
through
(
0
,
2
)
(0,2)
(
0
,
2
)
.
QUESTION
What is the equation of a vertical line through
x
=
a
x = a
x
=
a
?
QUESTION
What is the relationship between slopes of parallel nonvertical lines?
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ANSWER
They are equal:
m
1
=
m
2
m_1 = m_2
m
1
=
m
2
. Parallel lines have the same slope.
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