Posted by Tifini on Sunday, July 15, 2012 at 9:18pm.
Consider y=x^2+8x+16.
What is the correct way to factor this equation?
How does this equation shift the graph of y=x^2?
A. the correct factored form is y=(x+4)^2. this shifts the graph of y=x^2 up 4 units.
B. the correct factored form is y=(x+4)^2. this shifts the graph of y=x^2 right 4 units.
C. the correct factored form is y=(x+4)^2. this shifts the graph of y=x^2 left 4 units.
D. the correct factored form is y=(x+16)^2. this shifts the graph of y=x^2 up 16 units.
E. the correct factored form is y=(x4)(x+4). this shifts the graph of y=x^2 right 4 units and up 4 units.

Integrated Math 1  MathMate, Sunday, July 15, 2012 at 9:31pm
The standard graph is y=x^2.
The shifted graph is
y=a(xh)^2+k
which shifts the graph h units to the right, and k units up with a vertical multiplication factor a.
In the given problem,
h=4,
k=0,
a=1.
Try to interpret the results.
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