Write the rule for this translation: Slide 5 up and 7 right.
(x, y)-----> (x + 7, y + 5)
What axis is the triangle being reflected over?
Y-axis
Is the image A'B'C' is a rotation of ABC? If not, please state the transformation.
No, its a translation.
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
Scale factor is ¼
Are the following similar? Why or why not?
No, the ratios of the corresponding sides are not equal.
How would you translate point P to P'?
Translate 2 units to the right and 8 units down
Reflect Point C over the y-axis:
(-3, 2)
Explain the difference in reflections and rotations.
What is reflections are a congruent flip and rotations are a congruent turn?
Corresponding angles are congruent and corresponding sides are proportional are ____________________.
What is similar?
The pair of figures is similar. Find the missing side.
x = 5
Triangle HIJ had coordinates H (3, -2), I (4, -3) and J (6, 3). It was translated to a new position with coordinates H’ (5, -7), I’ (6, -8) and J’ (8,-2). What is the rule that was used to translate the figure
(x+2, y-5)
Triangle HIJ had coordinates H (3, -2), I (4, -3) and J (6, 3). It was reflected to a new position with coordinates H’ (3, 2), I’ (4, 3) and J’ (6, -3). What is the rule that was used to reflect the figure
What is a reflection across the x-axis?
How many degrees was the figure rotated?
90 degrees clockwise
How do you write the algebraic notation when the scale factor is 3?
(x, y) goes to (3x, 3y)
To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree. How tall is the tree?
72 feet
A triangle has coordinates A (-4, -3), B (-2, 2) and C (1, 4). If the triangle is translated 2 units up and 7 units left, what would the new coordinates be
What is A' (-11, -1), B' (-9, 4), and C' (-6, 6)?
Reflect over x-axis. Which point would be at (3, -6).
A
If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?
(-5, 3)
If a figure has coordinates S (-4, -2), T (-3, 1) and U (-2, -2), what would the new coordinates be if it was dilated by 3?
What is S’ (-12, -6), T’ (-9, 3), and U’ (-6, -6)?
The two right triangles below are similar. What is x, the missing side length in triangle DEF?
9.75
Determine how to translate triangle ABC to triangle A'B'C' ?
(x - 2, y + 9)
Identify the combined transformations from the original to the final image. Original Triangle ABC: A (-1, -2), B (-3, -4), C (-3, -2) First image Triangle A’B’C’: A’ (1, -2), B’ (3, -4), C’ (3, -2) Final image Triangle A’’B’’C’’: A’’ (2, -4), B’’ (6, -8), C’’ (6, -4)
What is reflected over the y-axis followed by a dilation of 2?
A trapezoid has vertices Q (-2, 5), R (3, 5), S (6, 1), and T (-2, 1). After transformation, the coordinates of the image are Q’ (-5, -2), R’ (-5, 3), S’ (-1, 6), and T’ (-1, -2). Describe the transformation.
What is 90° counterclockwise or 270° clockwise?
Which one of the following transformations will result in figures that are similar but not congruent?
What is dilation.
A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building?
32 feet