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Total questions: 15
Worksheet time: 30mins
Translating a figure changes its ................... in the coordinate plane.
size
position
color
shape
Dilating a figure changes its ................... in coordinate plane
position
shape
color
size
Triangle ABC has vertices A(1,3), B(2,5), C(-3,4). Find the vertices A' after the translation (x+4,y-3)
(7,-1)
(5,0)
(5,-2)
(7,0)
Describe the translation done from the red triangle to the green triangle
(x-2,y-4)
(x-2,y+4)
(x+4,y-2)
(x+2,y+4)
A (a) is a line halfway between the preimage and image after reflection
preimage and image after reflection are ...............
congruent
similar
has different size
has different shape
which graph shows the reflection for the preimage across x-axis
Graph A
Graph B
Graph C
Graph D
A triangle is reflected across the y-axis, find the coordinate of B' if B(3,6).
(-3,6)
(3,-6)
(-3,-6)
(6,3)
Find A' after reflecting rectangle ABCD across x-axis
(2,3)
(-2,3)
(-2,-3)
(2,-3)
When a figure is related about a point the point is called
origin
center of rotation
graph
coordinate plane
The vertices of A are (-5,2). After rotation the vertices of A' are (5,-2). What is the angle and direction of rotation?
90 clockwish
180 clockwise or counter clockwise
270 clockwise
270 counter clockwise
90 counter clockwise
180 clockwise or counter clockwise
270 clockwise
90 clockwise
Triangle GHK is dilated by scale factor 3. the vertices of GHK are G(3,2), H(6,-2), K(1,3). Find the vertices of K' after dilation
(3,9)
(1,9)
(3,3)
(-3,-9)
Point A in triangle ABC has vertices A(-1,4), after dilation the vertices of A'(-2,8). Find the scale factor.
0.5
-0.5
2
1.5
when the value of K less than 1 the image size will ................ comparing with the preimage.
increase
decrease
remain the same
