Composition of Transformations

Is it true that the product of a translation and dilation (in either order) is a signed dilation? This sketch shows both products. Prove that they do make a signed dilation. Find numerical the center and dilation factor of each for this sketch. DO NOT MOVE POINTS OR VECTOR! This will affect your answers

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

Can you find the center and dilation factor in general? If so, what are they?

Catherine O'Neill, Created with GeoGebra