Graphing Quadratics In Vertex Form A
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2Algebra 1
10.1 Day 2 ‐ Graphing Quadratics in Vertex Form
VERTEX FORM OF A QUADRATIC:
The vertex is ___________. The axis of symmetry is ____________
When a > 0, the parabola opens_________. When a < 0, the parabola opens __________
Steps to graph a quadratic in vertex form:
1)
Identify a, h, and k
2)
Draw the axis of symmetry, x=h
3)
Plot the vertex, (h,k)
4)
Plot 2 points on either side of the vertex, then draw a parabola through the points.
2
2
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Example 1: Graph
a = ____ h = _____ k = ______
Opens: UP or DOWN
Axis of Symmetry:
Vertex:
f x
___________ as
x
f x
___________ as
x
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