Quadratic Functions Worksheet - Unit #4 & 5 Review Page 2
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7MPM2D
Unit #4 & 5 Review
Quadratic Functions
Solving for the Zeroes and Vertex
Standard Form:
Factored Form:
Vertex Form:
a)
a)
a)
2
2
y
x
6
x
8
y
(
x
2)(
x
4)
y
2(
x
1)
2
b)
b)
b)
2
2
y
x
6
x
y
3(
x
1)(
x
2)
y
3(
x
2
)
1
2
c)
c)
c)
2
2
y
3(2
x
1)(
x
2)
y
2
x
4
x
5
y
(
x
1)
4
Find the maximum of the minimum of a Quadratic
a)
2
y
2
x
3
x
8
b)
y
(
x
3)(
x
4)
c)
2
y
7(
x
3)
1
Find the y-int of a Quadratic
Method #1
1. The coordinate of any y-int is (0,y). This means that the x-coordinate will
always be zero.
2. To solve for the y-int you can just substitute 0 for “x” and solve for y.
Method #2
1. Expand the quadratic into standard form. The “c” value will be the y-int.
Find the y-intercept of the following quadratics
a)
f)
2
2
y
x
6
x
8
y
2(
x
3
)
4
b)
g)
2
2
y
x
6
x
y
2(
x
3
)
4
c)
h)
2
y
2
x
4
x
5
y
3(
x
1)(
x
2)
d)
i)
2
y
2(
x
3
)
4
y
3(2
x
1)(
x
2)
e)
y
(
x
4)(
x
3)
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