IM 8.2.12 Practice: Using Equations for Lines

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GeoGebra Classroom Activities, IM 6 – 8 Math

Select all the points that are on the line through and .

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

All three points displayed are on the line.

Find an equation relating and .

Here is triangle ABC. Draw the dilation of triangle ABC with center (2,0) and scale factor 2.

Here is triangle ABC. Draw the dilation of triangle ABC with center (2,0) and scale factor 3.

Here is triangle ABC. Draw the dilation of triangle ABC with center (2,0) and scale factor 1/2.

What are the coordinates of the image of point when triangle is dilated with center and scale factor ?

Write an equation for the line containing all possible images of point .

Here are some line segments.

Which segment is a dilation of  using A as the center of dilation and a scale factor of ?

Which segment is a dilation of  using A as the center of dilation and a scale factor of ?

Which segment is not a dilation of , and how do you know?

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