The Graph Of A Quadratic Function (Day 1) Examples And Worksheet - Algebra Unit 11-Graphing Quadratics Page 2
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15Turning Point:
Is another term for the vertex of the parabola.
y
The “vertex” has the coordinates of
.
To Find Turning Point (T.P.)
x
Zeros (roots)
of the equation are the points where the parabola _____________________ the
x – axis, so y = ___________.
Write a quadratic equation that has zeros that
How to use the zeros to write a
are -5 and 8.
QUADRATIC equation:
Examples:
1.
What are the coordinates of the turning point of the parabola whose equation is
2
y = x
– 4x + 4?
(1) (2, 0)
(2) (–2, 16)
(3) (2, –4)
(4) (–2, 0)
2.
What are the zeros of the parabola on the grid?
Write an equation for this graph.
3.
If the roots of a quadratic equation are –2 and 3, the equation can be written as:
1) (x - 2)(x + 3) = 0
3) (x + 2)(x + 3) = 0
2) (x + 2)(x - 3) = 0
4) (x - 2)(x - 3) = 0
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