1.
a. Draw a triangle that is the image of the given triangle after dilation with center (0, −5) and a scale factor of 3.
b. What is the ratio of the rise to the run of the given triangle and the image triangle?
c. How do the ratios compare?
A. The ratios of the rise to the run of the two triangles are the same.
B. The ratio of the rise to the run of the image triangle is 3 times the ratio of the given triangle.
C. The ratio of the rise to the run of the given triangle is 3 times the ratio of the image triangle.
2. The slope of the given line is 1 fifth . One slope triangle is shown. Another slope triangle with a ratio of the rise to the run of 1 fifth has vertices at (0, 0) and (5, 0). Find the coordinates of the third vertex.
3.
a. Draw a triangle that is the image of the given triangle after dilation with center (−1, 0) and a scale factor of 2.
b. Look at the ratio of the rise to the run of each triangle. How do the ratios compare?
c. Draw a triangle with the same ratio of the rise to the run with center (0, 0).
4.
a. Writing Draw a triangle that is the image of the given triangle after dilation with center (2, 1) and a scale factor of 3.
b. What is the ratio of the rise to the run of the given triangle and the image triangle?
5. Error Analysis Your friend incorrectly says that the image of the given triangle after a dilation with center (0, 0) and a scale factor of 1 half has a ratio of the rise to the run of 2.
a. Draw a graph that shows the image of the given triangle.
b. What is the correct ratio of the rise to the run?
c. What mistake did your friend make?