Unit 3 Quadratics Relations 1 Worksheet Page 32
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45MBF3C
Name:
BLM 3.5.1
Date:
Exploring the Factored Form of a Parabola
In this investigation you will graph different parabolas and determine the link
between the equation in “factored form” and the zeroes of the parabola.
You will need to be able to determine the following about a parabola:
The zeroes
The direction of opening
The axis of symmetry
The step pattern
TECHNOLOGY OPTION
To help you graph and plot the parabolas, enter the equation in the
Y =
graph
screen on your TI – 83 graphing calculator, press
to see the graph and
graph
press
2nd
to see a table of values for the parabola
Parabola Investigation #1
y = (x – 1)(x + 1)
Equation
Table of Values
x
y
-3
-2
-1
0
1
2
3
Fill in the following information
about the parabola:
What is the
What are the zeroes?
What is the axis of
What is the step
Direction of
symmetry?
pattern?
Opening?
_____ and ______
_________
____________
____, ____, ____
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