The Graph Of A Quadratic Function (Day 1) Examples And Worksheet - Algebra Unit 11-Graphing Quadratics
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15ALGEBRA UNIT 11-GRAPHING QUADRATICS
THE GRAPH OF A QUADRATIC FUNCTION (DAY 1)
The Quadratic Equation is written as: _______________________ ; this equation has a
degree of _________.
Where a, b and c are integer coefficients (where a
0)
The graph of this equation is called a ________________; it is _________________.
Parabolas are functions because they ____________________________________.
2 TYPES OF PARABOLA SHAPES
When “a” is positive, the parabola opens: _______
Where the curve reaches a ___________________
When “a” is negative, the parabola opens: _______
Where the curve reaches a ___________________
Draw in the line of symmetry of the parabola on the grid below, left.
y
This line of symmetry is called the _____________________________________
It is always a vertical line that goes through the turning point of the curve.
x
Formula:
Axis of Symmetry
:
Examples:
1. What is an equation of the axis of symmetry of the parabola represented by
2
y =
x
6
x
4
?
2
2. What is the equation for the axis of symmetry for :
y
x
2
x
1
(1)
x = 1
(2)
x = – 1
(3)
y = 1
(4)
y = – 1
1
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