03_06_task.pdf - Name:       Date:       School:      ...

Name:
Date:
School:
Facilitator:
3.06 Focus on Quadratics
This task requires you to create a graph. You have several options:
•
Use the Word tools;
•
Draw the graph by hand, then photograph or scan your graph; or
•
Use the GeoGebra linked on the Task page of the lesson to create the graph; then, insert a
screenshot of the graph into this task.
1. Find the axis of symmetry for y = 4x
2
+ 16x - 2. b
a. x = 2
b. x = -2
c. x = 8
d. x = -8
2. Find the axis of symmetry for y = -x 2 - 9x + 4.
2
-
-
x
x
x
x
=
=
=
=
3. Find the vertex of y = 3x 2 + 12x + 2. b
4. Find the vertex of y = -2x
2
- 3x - 1.
3
4
,
1
8
) (
−
3
4
, 1
( )

c.
d.
5. Find the x-intercept(s) of y = x 2 - 5x - 14. d
6. Find the x-intercept(s) of y = 3x
2
+ 10x - 8.
7. Find the y-intercept(s) of y = x
2
- 5x - 14. c