Solving Linear–Quadratic Systems
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
What does
b
2
−
4
a
c
>
0
b^2-4ac>0
b
2
−
4
a
c
>
0
tell you about a linear-quadratic system after substitution?
QUESTION
What is the key algebraic step to solve
y
=
2
x
+
1
y=2x+1
y
=
2
x
+
1
and
y
=
x
2
y=x^2
y
=
x
2
together?
QUESTION
What form should solutions to a system in two variables be written in?
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ANSWER
As ordered pairs
(
x
,
y
)
(x,y)
(
x
,
y
)
. Solutions are coordinate pairs showing intersection points.
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