We can use the mirror formula:
[tex]\frac{1}{f}=\frac{1}{v}+\frac{1}{u}[/tex]The focal length, f, is 17.5 cm. (remember the minus sign)
The object distance, u, is 24.8 cm. (minus sign)
We can look at the magnification equation:
[tex]M=-\frac{u}{v}[/tex]Now, let's plug in the numbers for u and v.
[tex]M=-\frac{(-24.8)}{(-17.5)}[/tex]Simplify this equation to get:
[tex]M=-1.4171[/tex]The magnification of the image is -1.4171 cm.
