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OpenStudy (anonymous):
Describe how the graph of y = x2 can be transformed to the graph of the given equation.
y = (x – 4)2 – 8
OpenStudy (anonymous):
OpenStudy (anonymous):
@phi HELPP!!
OpenStudy (anonymous):
Shift the graph of y = x2 right 4 units and then down 8 units. thats my answer
OpenStudy (anonymous):
is it right?
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OpenStudy (phi):
is y the up/down or sideways ?
OpenStudy (anonymous):
up down
OpenStudy (phi):
y = (x - 4)^2 - 8
without the -8, y= (x-4)^2
that's some number.
then we add -8 to the y (the y value gets smaller by 8)
in other words, y is shifted down by 8
OpenStudy (anonymous):
and it would be right 4?
OpenStudy (phi):
now for the x
if we start with
y= x^2
when x is 0, we get y=0
if we do
y= (x-4)^2 and we put in x=4 we get y = (4-4)^2 = 0
in other words x=4 in the new equation matches up with x=0 in the original
which way did we move ?
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OpenStudy (anonymous):
right 4
OpenStudy (phi):
we moved from 0 to 4, so right 4 steps
and down 8 steps
I think you got the right answer.