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A polygon will be dilated on a coordinate grid to create a smaller polygon. The polygon is dilated usi Xthe origin as the center of dilation.Which rule could represent this dilation?

A Polygon Will Be Dilated On A Coordinate Grid To Create A Smaller Polygon The Polygon Is Dilated Usi Xthe Origin As The Center Of DilationWhich Rule Could Repr class=

Sagot :

The rule for a dilation by a factor of k using the origin as the center of dilation, is:

[tex](x,y)\rightarrow(kx,ky)[/tex]

In the options A and B, additions and substractions are involved. Then, they cannot be the rule of a dilation about the origin.

In the options C and D, we can see that both are dilations about the origin. The factor used in the option C is 5/4, while the factor used in the option D is 0.9.

Nevertheless, notice that 5/4 is greater than 1 and 0.9 is smaller than 1.

Then, the dilation from option C would produce a bigger polygon, while the dilation from option D will produce a smaller polygon.

Since the polygon must be a smaller one, then the rule that could represent this dilation is:

[tex](x,y)\rightarrow(0.9x,0.9y)[/tex]

Which corresponds to option D.

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