Download 9-29 NOTES Graph Vertex Form Day 2

4.1 Graph Quadratics­Vertex Form.notebook
WARM UP
September 29, 2016
Opens
Axis of
Vertex
Symmetry
2
1. y = 4(x - 7) + 2
2
2. y = -3(x - 2) - 7
2
3. y = (x + 5)
2
4. y = -x + 4
ID Characteristics
1. y = - (x - 3)2
2
2. y = (x - 1) - 4
3. y = -2(x - 7)2
4. y = 3x2 - 5
Practice Answers
1
4.1 Graph Quadratics­Vertex Form.notebook
September 29, 2016
5. y = 2(x - 2)2 + 5
Practice Answers
Graph Vertex Form
Ex. 4
2
y = 1/2 (x + 2) - 3
x y
Vertex:
Axis of symmetry:
Compare to parent:
Domain:
Range:
Graph Vertex
2
4.1 Graph Quadratics­Vertex Form.notebook
September 29, 2016
Graph Vertex Form
Ex. 5
2
f(x) = 1/3(x + 1) - 8
x y
Vertex:
Axis of symmetry:
Compare to parent:
Domain:
Range:
Graph Vertex
Graph Vertex Form
Ex. 1
2
f(x) = -x + 2
x y
Graph Vertex
3
4.1 Graph Quadratics­Vertex Form.notebook
September 29, 2016
Graph Vertex Form
Ex. 2
2
f(x) = -2(x + 1) + 6
x y
Graph Vertex
Steps to graph quadratic function:
1.
2.
3.
4.
5.
6.
7.
8.
Identify direction opens.
Identify and plot vertex.
Set up x-y table; enter vertex.
Find next 2 x values by adding
denominator of "a" to previous
x value, twice.
Plug each new x value into the
function and find the
corresponding y value.
Plot the 2 new points.
Reflect both points across
the axis of symmetry.
Connect with smooth curve.
Steps to Graph
4