Set 100
- False.The x- and y-coordinate will switch places, but only one of
them will change sings. Which one depends on if the rotation is
clockwise or counterclockwise. - False. U(8,–3) would become U'(3,8) after being rotated
90 ̊counter clockwise. - True.Rotating points 90 ̊clockwise results in (y,-x) so (3,3) would
become (3,–3). Reflecting points over the x-axis results in (x,–y)
so again, (3,3) would become (3,–3). - P'(–2,–8).When a point is rotated 90 ̊ clockwise around the
origin, the image point will be A'(y,–x). Since H and G underwent
this transformation, point P must undergo the same transformation. - Since ΔDOG is in Quadrant IV, its vertices will have a positive
x-coordinate and a negative y-coordinate. If it is rotated 180°
clockwise orcounterclockwise it will have coordinate pairs with
negative x-coordinates and positive y-coordinates and will therefore
be in Quadrant II. Another way to accomplish this is to reflect
ΔDOG over the x-axis and then reflect ΔD'O'G' over the y-axis
(the reverse of this would also work).
Set 101
- T'(–5,3)
- S'(–2,4)
- I'(2,–7)
- F'(1,–3)
- U'(–7,2)
- Z''(3,–9)
501 Geometry Questions