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FromTheMoon [43]
2 years ago
12

Our teacher hasn’t explained the concept yet but class was canceled today

Mathematics
1 answer:
masha68 [24]2 years ago
5 0

Answer:

What grade is this?

Step-by-step explanation:

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We conclude that the original triangle ΔDEF is dilated by a scale factor of 5/2 to get the image triangle ΔD'E'F'.

Therefore, 'Cárl' is correct. Hence, option 'a' is correct.

Step-by-step explanation:

Checking the location of the vertices of the original triangle ΔDEF

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  • E(2, 4)
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Checking the location of the dilated vertices of the image triangle ΔD'E'F'

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Notice that if we multiply the vertices of the original triangle ΔDEF by 5/2, we get the correct image vertices of image triangleΔD'E'F'

i.e.

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E(2, 4) → E'(5/2 (2), 5/2(4))  → D'(5, 10)

F(0, 2) → E'(5/2 (0), 5/2(2))  → F'(0, 5)

Thus, we conclude that the original triangle ΔDEF is dilated by a scale factor of 5/2 to get the image triangle ΔD'E'F'.

Therefore, 'Cárl' is correct. Hence, option 'a' is correct.

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