The dashed triangle is a dilation image of the solid triangle with the center of the origin. Is the dilation an enlargement or a reduction? Find the scale factor of the dilation.

Question

shadyykatie · Answer

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doc.brown · Answer

How long is the big triangle along x?
How long is the little baby triangle along x?

shadyykatie · Answer

the big triangle is 6 units and the little triangle is 2 units. Is that correct?

doc.brown · Answer

That's right so how many times smaller is the little baby triangle?

anonymous · Answer

Which do you think it is, an enlargement or reduction? For the scale factor, compare the lengths of two corresponding distances (eg length of a side, or height or width) of both triangles. 

The scale will be the number that you multiply the smaller length by to get the bigger length

For example, for the small triangle I see that the leftmost vertex is at -2 while the base is at +2, so the distance is 4,  and for the bigger triangle the leftmost vertex is at -6 and the base is at +6

shadyykatie · Answer

@doc.brown is it 4?