2 years ago

Can someone explain how to do this?

Chemistry

1 answer:

skelet666 [1.2K]2 years ago

8 0

The paper is not clear so please ask your problem again with more clear print

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On a coordinate plane, which single transformation could map point A (3,-4) onto point A' (1.5,-2)? *

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Answer: A dilation with rule: $(x,y)\to(\dfrac12x,\dfrac12y)$

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A dilation is a non-rigid transformation that creates an image that is the same shape as the original but has a different size.

It uses a scale factor k such that

$(x,y)\to(kx,ky)$

(x,y)= coordinates of original figure

(kx,ky) = corresponding coordinate in the image.

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Using scale factor k= $\dfrac12$ , we have

$A(3,-4)\to A'(\dfrac12\times3, \dfrac12\times-4)=A'(1.5,-2)$

Required rule: $(x,y)\to(\dfrac12x,\dfrac12y)$

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