Graph Quadratic Functions In Standard Form Page 2
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1
2Summary / Properties of Parabolas in Standard Form
y = ax
+ bx + c
2
Graph opens up if
_____________
Graph opens down if
_____________
(Reflected over x-axis)
Graph is narrower if
_____________
Graph is wider if
_____________
(Vertically stretched)
(Vertically compressed)
Axis of Symmetry
_____________
y-intercept
_____________
Maximum Value if
_____________
Minimum Value if
_____________
EXAMPLE y = !2 x
+ 16 x ! 31
2
a.
Describe the graph of y = !2 x
+ 16 x ! 31
2
b.
Graph the parabola and compare it to your description.
c.
Investigate the Parabola. Always include these 8 parts.
Function in Vertex Form: ______________________________
Vertex
_______
Max / Min
_______
y-int
_______
AOS
______
x-int
_______
x-int
_______
Domain
_______
Range _____
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