Question

Triangle ABC has vertices at (–1, 3), (2, 1), and (–2, –1). Using triangle ABC as the pre-image and the origin as the center of dilation, which of the following is not a coordinate of a dilation that uses a scale factor of 4?

Answer 1

To get the coordinates for each coordinate after using the scale factor of 4, just multiply each coordinate by 4. So, I'll do the first one as an example, then you try the rest.

-1*4=-4
3*4=12, so (-4,12) is not the right answer.

Answer 2

Now try the other two coordinates.

Answer 3

Do you need any more help? I help show you how to multiply the other two coordinates if I need to.

Answer 4

i got (-4 , 12 )

Answer 5

The question is asking you which one of the coordinates would not be an enlarged version of the original coordinates. (-4,12) is the enlarged coordinate of the first original coordinate.

Answer 6

This means that the answer to your question would not be (-4,12)

Answer 7

oh!

Answer 8

(-8 , -4)

Answer 9

2*4=8
1*4=4=(8,4)
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-2*4=-8
-1*4=-4=(-8,-4)
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Those two coordinates are also not the correct answer to your question because they are the enlarged coordinates of the original coordinates.

So, (-4,12), (8,4), and (-8,-4) are all not the answer because they are the enlarged coordinates. So, look at the three of them, and exclude them from the answer choices.

Answer 10

There should only be one answer choice left, and that is the correct one.

Answer 11

I assume that the medal means you found the correct answer.

Answer 12

yes