Worksheet: Standard Form, Line Of Symmetry And Vertex
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4Worksheet: Standard form, line of symmetry and vertex for quadratic equations
Name:_______________________________________ Date:__________________
Mr. Chvatal
Practice writing quadratic equations in standard form and identifying a, b and c.
2
Remember, standard form is
y ax
bx c
+ .
=
+
2
2
Sample #1:
y
2
x x
8
Sample #2:
y
25
x
= −
+
−
= −
+
2
2
Answer:
y
x
2
x
8
Answer:
y
x
25
=
−
−
=
−
a = ,
1
b = − ,
2
c = −
8
a = ,
1
b = ,
0
c = −
25
2
2
1.
y
x
3
x
11
2.
y
x
7
x
11
=
+
+
=
−
−
2
2
3.
y
4
x x
9
4.
y
16
x
3
x
=
+
−
=
− +
2
2
5.
y
x
9
6.
y
2
x
5
x
=
−
=
+
2
2
7.
y
3 4
x
8.
y
6
x
= − −
=
2
2
9.
y
x
8 6
x
10.
y
x x
= −
− +
= −
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