Hello! So in this question, you need to do it backwards. This means, taking the vertices of the new triangle and reflecting it across the X axis, and then reflecting it 180 degrees. The formula for reflecting across the X axis is-- (X,Y) -> (X,-Y) *Note, in this case, it may not always be negative Y. The negative symbol only stands for the opposite. So it the point is negative originally, then the new point would be positive. __________________________________ So, now you take your points, and use the formula. (-4,-4) -> (-4,4) (-2,-4) -> (-2,4) (-3,-1) -> (-3,1) Now, you have your new points. But, you still need to rotate it 180 degrees. The formula to rotate 180 degrees is-- (X,Y) -> (-X,-Y) Then, you take your new points, and use the formula for each coordinate. (-4,4) -> (4,-4) (-2,4) -> (2,-4) (-3,1) -> (3,-1) There is your answer. The new points would be-- (4,-4) (2,-4) (3,-1) Hope this helped! Regards, ~KayEmQue
You have 4 green picks and, after adding some orange picks, you know that every 2 picks from 3 are orange.
So, 1 green pick needs 2 orange picks, three in total. Since you have 4 green picks, then you will have in total 3·4=12 picks (4 green and 12-4=8 orange).
