Hello! So, your questions are basically having to do with rotations. This means to rotate certain points in a grid. The following are formulas for solving rotations- 90 Degrees Clockwise About The Origin = (X,Y) -> (Y,-X) 180 Degrees About The Origin = (X,Y) -> (-X,-Y) 270 Degrees Clockwise About The Origin = (X,Y) -> (-Y,X) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 90 Degrees Counterclockwise = 270 Clockwise 270 Degrees Counterclockwise = 90 Clockwise ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *Note, in the formulas, the negative sign only stands for the opposite. So if your original point is a negative, it will become positive, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Now that we have our formulas, let's put them into affect with your points.
13) 90 Degrees CC = 270 Degrees Clockwise. Formula- (X,Y) -> (-Y,X) A (2,-2) -> A' (2,2) B (4,-1) -> B' (1,4) C (4,-3) -> C' (3,4) D (2,-4) -> D' (4,2)
*Note, the symbol _'_ Stands for prime. All this means, is the new point.
15) Now, I apologize, but I'm a bit confused on this one :( When it says about point L, I can't tell if it just wants that one point, or the whole figure translated. Again, I am so sorry :(
17) This one I do know. 270 degrees CC = 90 degrees Clockwise. Formula- (X,Y) = (Y,-X). W (-6,-2) -> W' (-2,6) X (-2,-2) -> X' (-2,2) Y (-2,-6) -> Y' (-6,2) Z (-5,-6) -> Z' (-6,5)
Hope this helped! Again, sorry about number 15. Have a great day! Regards, ~KayEmQue
To work out the multiplier, first add or subtract the percentage from 100, then convert to a decimal. Example: we want to add 20% to £110. To work out the multiplier, add 20 to 100, to get 120, and then change it to a decimal (divide by 100) to get 1.2.
