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OpenStudy (narissa):
563blackghost (563blackghost):
First off you can clearly see that the shape was rotated 180 degrees so which of the answer choices can u scratch off?
OpenStudy (narissa):
a and c?
563blackghost (563blackghost):
correct! now we know that the shape was dilated by a scale factor of ?......how do we find out how much it was dilated?
OpenStudy (narissa):
b?
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563blackghost (563blackghost):
we need to know if it was either dilated down by 4 or 1/4.....so how would we find out the scale factor?
OpenStudy (narissa):
confused!
563blackghost (563blackghost):
one sec ill try to explain...
OpenStudy (narissa):
k
OpenStudy (narissa):
its d?
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563blackghost (563blackghost):
Q (-4,8) is connected to R (-4,4) which is 4 units long...... Q2 (1,-2) is connected to R2 (1,-1) which is 1 unit long so we put that into a ratio....\[\frac{ 1 }{ 4 }\] so the dialation is 1/4 so what would be the answer...?
OpenStudy (narissa):
b
563blackghost (563blackghost):
Correct xD
OpenStudy (narissa):
k thats what I thought but wasn't sure
OpenStudy (narissa):
i'm going to post another can u help
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563blackghost (563blackghost):
sure but can u put it up in another question so i can get credit?