Arrow Notation
The transformation
(x, y) --> (2x-3, 2y+7)
will do this to a figure.
What is
-translate left 3 and up 7
-dilate with scale factor 2?
You suspect an object has been rotated. To confirm you do this to your paper.
What is turn it?
A 10-sided figure.
What is a decagon?
When f(x) = 22x - 50, f(2) = ?
What is -6 or (2, -6) ?
Figure QRST has vertices Q(2,-1), R (6,-1), S(6,-3) and T(2,-3). Which will be the coordinates of vertex R' after the rectangle is rotated 90º counterclockwise about the origin?
What is (1, 6)?
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
What is (3,2)?
The order of a regular heptagon.
What is 7?
g(x) = (x-3)/2 + 5.
When g(x) = 7, x = ?
What is 7, or (7, 7)?
Which transformation does not result in a congruent figure?
What is a dilation?
The transformation
(x, y) --> (-y +2, x)
will do this to a figure.
What is
- translate RIGHT 2
- Rotate 90o CCW (or 270o CW)?
You suspect an object has been reflected. To confirm you do this to your paper.
What is fold your paper to make the figures overlap?
- or connect corresponding (same letter) parts, find the midpoint, and draw in the line of reflection through the midpoint(s).
Write the angle of rotational symmetry of a hexagon.
What is 60o?
f(x) = 3x - 8. f(-2) = ?
What is -14?
A transformation that preserves size and shape.
What is an isometry?
Describe the transformation for this notation:
(x,y) --> (0.5x, -0.5y)
What is
- Dilate with scale factor 0.5
- Reflect over the x-axis?
A picture with one point (-3,4) was reflected over the line y=x. What should be the new coordinates of the point?
What is (4,-3)?
The number of sides on a nonagon.
What is 9?
g(x) = 0.5(x + 4) - 1.
g(x) = 4, x = ?
What is 6, or (6, 4) ?
The point A(-4, -2) is transformed using
(x,y) --> (-2y, 2x+15). Find A'.
What is A'(4, 7)
The transformation
(x, y) --> (-y + 1, -x - 3)
will do this to a figure.
What is
- Translate RIGHT 1 and DOWN 3
- Reflect over the line y = -x ?
To determine the scale factor in a dilation, you
What is make a fraction with new (A') lengths or coordinates over the original (A) length or coordinate?
A figure with 20 sides.
What is a 20-gon?
f(x) = 0.25(x - 3) - 5. f(7) = ?
What is -4, or (7, -4)?
Triangle A(0,2) B(4, 6) C(-2, 5) is transformed by
(x,y) --> (1/2x + 3, -1/2y - 2). Find the new coordinates.
What is A'(3, -3) B'(5, -5) C'(2, -4.5)?