True or false: The mapping notation for reflecting point (x,y) about the x
-axis is (−x,y).(1 point)
Responses
This statement is false. The mapping notation for reflecting point (x,y) about the x-axis is (y,x)..
This statement is false. The mapping notation for reflecting point (x,y) about the x-axis is (x,−y).
This statement is true.
This statement is false. The mapping notation for reflecting point (x,y) about the x-axis is (−x,−y).
This statement is false. The mapping notation for reflecting point (x,y) about the x-axis is (x,−y).
What is the mapping notation for translating point (x,y) down 3
units?(1 point)
Responses
(x+3,y)
(x,y+3)
(x−3,y)
(x,y−3)
The mapping notation for translating point (x,y) down 3 units is (x,y-3).
What translation vector translates A(−2,7) to A′(5,−1)?(1 point)
Responses
(3,−6)
(−7,8)
(7,−8)
(3,6)
The translation vector that translates A(-2,7) to A'(5,-1) is (7,-8).
To find the translation vector, we subtract the corresponding coordinates of A and A'.
(5 - (-2), -1 - 7) = (7, -8)
What is the answer
The answer is (7,-8).
Which transformation maps B(2,5) to B′(−2,−5)?(1 point)
Responses
A 270° rotation
Reflection about the y-axis
A 180° rotation
A 90° rotation
The transformation that maps B(2,5) to B'(-2,-5) is reflection about the origin or a 180° rotation.
Point (a,b) is reflected about the x
-axis. The resulting point is then reflected about the y
-axis to produce a final point. Which transformation maps the original point directly to the final point?(1 point)
Responses
A 180° rotation
A 270° rotation
A 90° rotation
A translation down b units and to the left a units