Dilations Practice- Station A

The scale factor for a dilation about the origin is

 $k=\frac{4}{3}$  . This is best classified as...

• an enlargement.

• a reduction.

The scale factor for a dilation about the origin is

 $k=\frac{4}{3}$  . Select the general rule for this dilation.

•  $\left(x,y\right)\rightarrow\left(4x,\ 3y\right)$  
  

•  $\left(x,y\right)\rightarrow\left(3x,\ 4y\right)$  
  

•  $\left(x,y\right)\rightarrow\left(\frac{4}{3}x,\ \frac{4}{3}y\right)$  

•  $\left(x,y\right)\rightarrow\left(\frac{3}{4}x,\ \frac{3}{4}y\right)$  

 $\Delta DOG$  has vertices  $D\left(0,2\right),\ O\left(4,4\right),\ and\ G\left(-1,4\right)$  What is the coordinate of  $D'$  after a dilation about the origin where  $k=4$  

•  $D'\ \left(0,8\right)$  

•  $D'\ \left(0,6\right)$  

•  $D'\ \left(4,8\right)$  

•  $D'\ \left(4,6\right)$  

The scale factor for a dilation about the origin is

 $k=\frac{1}{2}$  . This is best classified as...

• an enlargement.

• a reduction.

The scale factor for a dilation about the origin is

 $k=\frac{1}{2}$  . Select the general rule for this dilation.

•  $\left(x,y\right)\rightarrow\left(x,\ 2y\right)$  
  

•  $\left(x,y\right)\rightarrow\left(2x,\ y\right)$  
  

•  $\left(x,y\right)\rightarrow\left(\frac{1}{2}x,\ \frac{1}{2}y\right)$  

•  $\left(x,y\right)\rightarrow\left(2x,\ 2y\right)$  

 $\Delta DOG$  has vertices  $D\left(0,2\right),\ O\left(4,4\right),\ and\ G\left(-1,4\right)$  What is the coordinate of  $G'$  after a dilation about the origin where  $k=\frac{1}{2}$  

•  $G'\ \left(-0.5,\ 2\right)$  

•  $G'\ \left(-2,\ 2\right)$  

•  $G'\ \left(-0.5,\ 8\right)$  

•  $G'\ \left(0.5,\ -2\right)$  

The scale factor for a dilation about the origin is

 $k=3$  . This is best classified as...

• an enlargement.

• a reduction.

 $\Delta DOG$  has vertices  $D\left(0,2\right),\ O\left(4,4\right),\ and\ G\left(-1,4\right)$  What is the coordinate of  $O'$  after a dilation about the origin where  $k=\frac{3}{4}$  

•  $O'\ \left(3,\ 3\right)$  

•  $O'\ \left(\frac{3}{4},\ \frac{3}{4}\right)$  

•  $O'\ \left(12,\ 12\right)$  

•  $O'\ \left(\frac{4}{3},\ \frac{4}{3}\right)$  

Point is the vertex of a polygon.

Point A' is the image of A after a dilation.

Find the scale factor of the dilation.

• $k=3$

• $k=\frac{2}{3}$

• $k=\frac{3}{2}$

• $k=\frac{-3}{2}$

Point is the vertex of a polygon.

Point A' is the image of A after a dilation.

Find the scale factor of the dilation.

• $k=5$

• $k=\frac{1}{5}$

• $k=8$

• $k=\frac{3}{5}$