Quadratic and Polynomial Relationships
GRE · Flashcards · Application
GRE · FLASHCARDS
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QUESTION
What is the axis of symmetry of
y
=
5
x
2
−
20
x
+
1
y=5x^2-20x+1
y
=
5
x
2
−
20
x
+
1
?
QUESTION
Find the quadratic with roots
2
2
2
and
−
3
-3
−
3
and leading coefficient
1
1
1
.
QUESTION
Solve
x
2
−
5
x
+
6
=
0
x^2-5x+6=0
x
2
−
5
x
+
6
=
0
.
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ANSWER
x
=
2
,
3
x=2,3
x
=
2
,
3
. Factoring gives
(
x
−
2
)
(
x
−
3
)
=
0
(x-2)(x-3)=0
(
x
−
2
)
(
x
−
3
)
=
0
, so roots are
2
2
2
and
3
3
3
.
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