4.2 Graph Quadratics­Standard Form.notebook
September 30, 2016
Warm Up
State the direction of opening, the axis of
symmetry, and the vertex for each quadratic.
2
1. y = -3/4 (x - 4) + 1
2
2. y = 5/2 (x + 3) - 2
2
3. Complete the x-y table below for y = (x - 1) + 4.
x y
2
3
2
4. Graph y = ½(x + 3) - 5.
Warm Up
2
Pull
Standard (Quadratic) Form y = ax + bx + c
Pull
Characteristics from Standard Form:
opens up
opens do
1. Direction of opening:
2. Axis of symmetry:
Pull
the axis is x­coordina
value into t
and find th
4. y-intercept:
Pull
Pull
3. Vertex :
Pull
5. Minimum or maximum:
opens up, m
opens down
Characteristics of Std Form
1
4.2 Graph Quadratics­Standard Form.notebook
September 30, 2016
State the direction of opening, axis of symmetry, and vertex for each quadratic function.
2. y = 2x2 ­ 12x + 16
1. y = x2 + 2x ­ 8
3. y = 2x2 + 8x
ID Characteristics
2