Transformation of Graphs Using Matrices - Dilation
A type of transformation that occurs when a figure is enlarged or reduced, the transformation is called a dilation . A dilation requires a center point and a scale factor . You can use scalar multiplication to perform dilations in matrices.
Write the vertex matrix for with . Then find the coordinates of the vertices of after a dilation by a scale factor of .
The scale factor is . So, multiply the vertex matrix by the scale factor of .
The coordinates of the vertices of are .