Answer:
P = -1 D
Explanation:
For this exercise we must use the equation of the constructor
    / f = 1 / p + 1 / q
where f is the focal length, p and q is the distance to the object and the image, respectively
The far view point is at p =∞  and its image must be at q = -100 cm = 1 m, the negative sign is because the image is on the same side as the image Â
    [tex]\frac{1}{f} = \frac{1}{infinity} + \frac{1}{-1}[/tex]
     f = 1 m
     P = 1/f
     P = -1 D
