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Graphing Quadratics in
Vertex Form
Section 9.1/9.2
Topic Focus
• I can graph quadratic functions in vertex form.
Topic Focus
1
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How do I graph quadratics in vertex form?
EXAMPLE 1
= −2
+1
+2
Domain:
Range:
Axis of Symmetry:
Vertex:
Solutions:
-intercept:
Guided Practice
How do I graph quadratics in vertex form?
EXAMPLE 2
=3
−2
−4
Domain:
Range:
Axis of Symmetry:
Vertex:
-intercept:
Solutions:
Guided Practice
2
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How do I graph quadratics in vertex form?
EXAMPLE 3
=−
+5
−2
Domain:
Range:
Axis of Symmetry:
Vertex:
Solutions:
-intercept:
Guided Practice
How do I graph quadratics in vertex form?
EXAMPLE 4
=
−3
+1
Domain:
Range:
Axis of Symmetry:
Vertex:
-intercept:
Solutions:
Guided Practice
3
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Summarize what you’ve learned!
• What are the steps to graph a quadratic function in vertex form?
• What do the following terms mean?
• Domain, Range, Axis of Symmetry, -intercept, Vertex, Zeroes/Roots/Solutions
• What does the graph look like? How do you describe it?
Reflect!
How do I graph quadratics in vertex form?
EXAMPLE 5
=2
+2
−6
Domain:
Range:
Axis of Symmetry:
Vertex:
-intercept:
Solutions:
Individual Practice
4
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How do I graph quadratics in vertex form?
EXAMPLE 6
= −3
−4
+7
Domain:
Range:
Axis of Symmetry:
Vertex:
Solutions:
-intercept:
Individual Practice
How do I graph quadratics in vertex form?
EXAMPLE 7
=−
+2
Domain:
Range:
Axis of Symmetry:
Vertex:
-intercept:
Solutions:
Individual Practice
5
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Topic Focus
• I can identify key features of a quadratic function in vertex form.
Topic Focus
How do I identify key features of a quadratic
function?
EXAMPLE 1
=5
−4
Axis of Symmetry:
Vertex:
+2
Range:
Domain:
-intercept:
Guided Practice
6
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How do I identify key features of a quadratic
function?
EXAMPLE 2
=−
+1
−3
Axis of Symmetry:
Range:
Domain:
Vertex:
-intercept:
Guided Practice
How do I identify key features of a quadratic
function?
EXAMPLE 3
= −2
Axis of Symmetry:
Vertex:
+5
+3
Range:
Domain:
-intercept:
Individual Practice
7
2/7/2016
How do I identify key features of a quadratic
function?
EXAMPLE 4
=
Axis of Symmetry:
Vertex:
−4
Range:
Domain:
-intercept:
Individual Practice
8