Solving Systems by Graphing
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
Two phone plans are graphed as cost versus minutes. What does the intersection point mean?
QUESTION
At what point do the lines
y
=
3
x
−
2
y = 3x - 2
y
=
3
x
−
2
and
y
=
x
+
4
y = x + 4
y
=
x
+
4
intersect?
QUESTION
At what point do the lines
x
=
4
x = 4
x
=
4
and
y
=
−
1
y = -1
y
=
−
1
intersect?
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ANSWER
(
4
,
−
1
)
(4, -1)
(
4
,
−
1
)
. One line is vertical and the other horizontal.
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