Quadratic Equations
PSAT · Flashcards · Application
PSAT · FLASHCARDS
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QUESTION
Identify the solutions of
x
2
−
5
x
+
6
=
0
x^2-5x+6=0
x
2
−
5
x
+
6
=
0
.
QUESTION
Find the axis of symmetry of
y
=
2
x
2
−
8
x
+
1
y=2x^2-8x+1
y
=
2
x
2
−
8
x
+
1
.
QUESTION
What is the discriminant of
3
x
2
−
6
x
+
1
=
0
3x^2-6x+1=0
3
x
2
−
6
x
+
1
=
0
?
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ANSWER
24
24
24
.
Δ
=
(
−
6
)
2
−
4
(
3
)
(
1
)
=
36
−
12
=
24
\Delta = (-6)^2 - 4(3)(1) = 36 - 12 = 24
Δ
=
(
−
6
)
2
−
4
(
3
)
(
1
)
=
36
−
12
=
24
.
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