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Mathematics 21 Online
OpenStudy (narissa):

Trapezoid EFGH Has coordinates

OpenStudy (narissa):

OpenStudy (narissa):

@563blackghost

563blackghost (563blackghost):

big problem....gonna take me a while to figure it out

OpenStudy (narissa):

k I'm not sure about this one! I will wait!!!

563blackghost (563blackghost):

Well im first gonna firgure out the dilation....

563blackghost (563blackghost):

E (-3,4) is connected to F (1,4) which covers 4 units.....E2 (12,-16) is connected to F2 (-4,-16) which covers 16 units...

563blackghost (563blackghost):

Now we need to input that into a ratio so...\[\frac{ 16 }{ 4 }=4\] so the scale factor is 4

563blackghost (563blackghost):

so which answer choices can we cross off?

OpenStudy (narissa):

a and c?

OpenStudy (narissa):

oops a and b?

563blackghost (563blackghost):

actually C and D

OpenStudy (narissa):

uh oh im sorry I was reviewing the other questions I answered sorry

563blackghost (563blackghost):

its alright

OpenStudy (narissa):

so the correct answer is vb?

OpenStudy (narissa):

oops b?

563blackghost (563blackghost):

Now we are left with A and B....we need to find out if it was either rotated 90 degrees clockwise or 180 degrees counterclockwise

OpenStudy (narissa):

maybe 90?

563blackghost (563blackghost):

one sec..

OpenStudy (narissa):

k

563blackghost (563blackghost):

OpenStudy (narissa):

its 90?

563blackghost (563blackghost):

i think its 180 degrees counterclockwise because the shape is turned 180 degrees instead of 90 degrees

OpenStudy (narissa):

thanks alot im going to post 2 more just to check my answers do u want me to tag u?

563blackghost (563blackghost):

sure xD and np

OpenStudy (narissa):

k

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