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samm2121
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How are the coordinates of the new point found if it is dilated with a scale factor of 3?
 2 years ago
 2 years ago
samm2121 Group Title
How are the coordinates of the new point found if it is dilated with a scale factor of 3?
 2 years ago
 2 years ago

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seashell Group TitleBest ResponseYou've already chosen the best response.2
) Here θ = 270; so, cos(270) = 0 and sin(270) = 1 Thus, (x₁,y₁) = (x*0y*1, x*1+y*0) = (y,x) [It is equivalent to 90 deg rotation in clockwise]
 2 years ago

samm2121 Group TitleBest ResponseYou've already chosen the best response.0
thanks heres a few more im just so bad at math How are the coordinates of the new point found if it is rotated 90° counterclockwise? How many degrees is that equivalent to if the rotation is clockwise?
 2 years ago

yakeyglee Group TitleBest ResponseYou've already chosen the best response.1
I don't quite understand @seashell 's reasoning. What I believe one should do is find the angle of the point to the \(x\)axis, and then find the point that is three times the distance away form the origin as the original point.
 2 years ago

seashell Group TitleBest ResponseYou've already chosen the best response.2
:p well then ;)
 2 years ago

yakeyglee Group TitleBest ResponseYou've already chosen the best response.1
Dilation means to stretch outward...it's not a rotation.
 2 years ago

seashell Group TitleBest ResponseYou've already chosen the best response.2
:p i gave you a medal ALRIGHT!;)
 2 years ago

yakeyglee Group TitleBest ResponseYou've already chosen the best response.1
Haha I know. ;) Just clarifying.
 2 years ago
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