Marcia developed a roll of film and received 4-inch by 6-inch prints. She wants to have one picture enlarged to an 8-inch by 12-inch print. What kind of transformation is this? What is the scale factor?

Answer 1

8/4=2
12/6=2

Area of first rectacangle:

A1=4*6=24

Area of second rectacangle:

A2=8*12=96

96/24=4

Scale for dimensions 2
Scale for areas 4