Solving Systems of Linear Equations
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
What method solves a system by solving one equation for a variable and substituting?
QUESTION
What slope condition guarantees exactly one solution for
y
=
m
1
x
+
b
1
y=m_1x+b_1
y
=
m
1
x
+
b
1
and
y
=
m
2
x
+
b
2
y=m_2x+b_2
y
=
m
2
x
+
b
2
?
QUESTION
What is the standard form of a linear equation used often for elimination?
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ANSWER
A
x
+
B
y
=
C
Ax+By=C
A
x
+
B
y
=
C
with
A
,
B
,
C
A,B,C
A
,
B
,
C
real and
A
A
A
and
B
B
B
not both
0
0
0
. Standard form is useful for elimination method calculations.
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