Does the graph in Part 1 represent a proportional relationship? How do you know?
Yes; it is a straight line that passes through the origin,
In Part 2,
If the scale factor had been
Smaller.
Are the two triangles similar? How do you know?
Yes; dilations create similar figures.
What must be true about the corresponding angles of these two triangles?
They must be congruent.
What must be true about the corresponding side lengths?
They must be proportional.
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