We have a point C that is dilated with a scale factor of 1/5 centered in the origin.
A dilation centered in the origin with scale factor of 1/5 is:
[tex](x,y)\longrightarrow(\frac{1}{5}x,\frac{1}{5}y)[/tex]For C=(10,15), we have:
[tex]C=(10,15)\longrightarrow C^{\prime}=(\frac{1}{5}\cdot10,\frac{1}{5}\cdot15)=(2,3)[/tex]Answer: C' = (2, 3)