Which of the following is NOT equivalent to 36/48?
For each of the following determine if the scale factor would cause a dilation that is a contraction or an expansion.
1/5
3/4
-5/8
-7/4
-121/99
1.5
-7
3
-40/41
contraction
expansion
Determine the scale factor used in the dilation graphed below:
Remember:
Determine the scale factor used in each dilation below.
scale factor:
scale factor:
Determine the scale factor used in each dilation below.
scale factor:
scale factor:
Triangle XYZ is graphed on the grid. Draw Triangle X’Y’Z’ after a dilation using a scale factor of 2 in the show your work section. Then fill in the pre-image and image points below to check your answers.
Y(
Z(
X(
Dilate the triangle graphed below by a factor of 2.5. Draw the resulting image in the show your work section. Then check your answer by filling in the image points below.
(0, 2) → (
(2, 0) → (
(-2, -2) → (
Dilate the triangle graphed below by a factor of 0.5. Draw the resulting image in the show your work section. Then check your answer by filling in the image points below.
(-4, -4) → (
(0, -4) → (
(-2, -6) → (
Dilate the triangle graphed below by a factor of -2. Draw the resulting image in the show your work section. Then check your answer by filling in the image points below.
(-2, 3) → (
(2, 3) → (
(2, 0) → (
(0, 1) → (
Determine the scale factor used in each dilation below:
scale factor:
scale factor:
Rate your understanding of today's topic. If you have additional comments you would like to share, use the show your work section to let me know!
Still need more practice? You can go to these links for additional practice:
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/e/performing-dilations
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/e/defining-dilations-2
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/e/dilations
You may also find these video links helpful:
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/v/dilating-points-example
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/v/dilation-scale-factor
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/v/thinking-about-dilations
https://www.khanacademy.org/math/geometry/hs-geo-transformations/hs-geo-dilations/v/dilating-shapes-shrinking