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Write a sequence of dilations and translations that maps circle B onto circle A

Write a sequence of dilations and translations that maps circle B onto circle A-example-1
User Gpeche
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ANSWER:

The sequence would be a dilation with a factor of 0.75 and a translation of 8 units to the right

Explanation:

We can determine the dilation by means of the radius of each circle.

In circle A it is 4 units and in circle B it is 3 units, therefore:


f=(3)/(4)=0.75

That is, there is a dilation by a factor of 0.75.

Then there is a translation to the right where we can calculate it knowing the centers of each circle, like this:


\begin{gathered} (-4,0)\rightarrow(4,0) \\ \\ t=4-(-4)=4+4=8 \end{gathered}

That means there is a translation of 8 units to the right.

The sequence would be a dilation with a factor of 0.75 and a translation of 8 units to the right

User Stephen Nichols
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