Scale factor = 2.5
Solution:
Length of the smaller rectangle = 3 units
Length of the larger rectangle = 7.5 units
To find the scale factor:
[tex]$\text{Scale factor}=\frac{\text{Larger length}}{\text{Smaller length}}[/tex]
[tex]$\text{Scale factor}=\frac{7.5}{3}[/tex]
[tex]$\text{Scale factor}=2.5[/tex]
Hence 2.5 is the scale factor applied to the first rectangle to the resulting image.
