Vertex Form Parabola
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1
2Algebra 2
5.7A Analyzing Graphs of Quadratic Functions
able to complete the square to write the vertex form of a quadratic function and to graph a parabola.
Obj:
5.7A Cooperative Learning
DIRECTIONS: With your partner, work out the following problems. You both need to record answers on your own
page as you work together.
Turn to page 284 in your text and get out your graphing calculator.
Complete Activity 1.
2
2
2
Graph y = x
, y = x
+ 3, and y = x
– 5
2
What happens to the graph of y = x
when a value is added to or subtracted from the squared term?
Complete Activity 2.
2
2
2
Graph y = x
, y = (x + 3)
, and y = (x – 5)
2
What happens to the graph of y = x
when a value is added to or subtracted from the value x?
Complete Activity 3a
2
2
Graph y = x
and y = -x
2
What happens to the graph of y = x
when it is multiplied by a negative value?
Complete Activity 3b
2
2
Graph y = x
and y = 4x
What happened?
1
2
2
Graph y = x
and y =
x
4
What happened?
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