Transformations Alg 1
Concepts Notes Page for Transformations
1) State the four transformations. Give the “hint” for each that tells what it is in
simple terms.
2) Define isometry. Use the terms preimage and image.
3) Which of the transformations are isometries?
4) What is the only transformation that preserves orientation?
5) If you are asked to translate a point four units to the left and three units up, how
can you express that in prime notation?
6) State the rules for
a. Reflection of x axis
b. Reflection of y axis
c. Reflection of y = x
d. Reflection of y =-x
7) What are the attributes of a reflection?
8) What is the rule for rotation of 90 degrees?
Transformations Alg 1
Transformations Alg 1
Concepts Notes KEY
1) State the four transformations. Give the “hint” for each that tells what it is in
simple terms.
Translation –slide
Reflection - flip
Rotation - turn
Dilation is enlargement or reduction
2) Define isometry. Use the terms preimage and image.
Isometry describes a transformation where the preimage is congruent to the image.
3) Which of the transformations are isometries?
Rotation, reflection, and translation
4) What is the only transformation that preserves orientation?
translation
5) If you are asked to translate a point four units to the left and three units up, how
can you express that in prime notation?
(𝑥, 𝑦)
(x + h, y+k)
6) State the rules for
a. Reflection of x axis (x, -y)
b. Reflection of y axis (-x, y)
c. Reflection of y = x (y, x)
d. Reflection of y =-x (-y, -x)
7) What are the attributes of a reflection?
Opposite orientation, preimage and image are perpendicular and equidistant to line of
reflection
8) What is the rule for rotation of 90 degrees? (-y, x)