Unit Test #20

Select your answers to the following 10 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.





If P(a, b) is reflected in the x-axis and the image reflected in the y-axis then the final image of P is:

A. (-a, -b)
B. (a, -b)
C. (-a, b)
D. (-b, -a)

Answer 1:





The point P (above) is reflected in the line y = -x.

The image of P is:

A. P
B. Q
C. R
D. S

Answer 2:





The image of the point (2, 2) after a reflection in the x-axis is A. (2, 2)
B. (2, -2)
C. (-2, -2)
D. (-2, 2)

Answer 3:





Which set of points is always invariant under any reflection? A. x-axis
B . y- axis
C. origin
D. mirror line

Answer 4:





Which of the following properties are invariantunder reflection? A. angle size
B. length
C. area
D. all of the above

Answer 5:





Name a property which is not invariant under reflection? A. angle size
B. sense
C. length
D. area

Answer 6:





A transformation where the size and shape remain the same for the object and the image is called an A. invariant
B. indirect
C. isometry
D. mirror line

Answer 7:





Which of the following letters could have a mirror line drawn on it? A. Z
B. Q
C. M
D. S

Answer 8:





On which of the following shapes can more than one mirror line be drawn? A. Parallelogram
B. Rectangle
C. Kite
D. Scalene triangle

Answer 9:





If a point and S and its image S' under a reflection are both on the mirror line.

The distance between S and S' is

A. -1
B. 1
C. 0
D. S

Answer 10: