What type of image is formed by a mirror if m = -0.4?

a. an image that is smaller than the object and is in front of the mirror
b. an image that is larger than the object and is in front of the mirror
c. an image that is larger than the object and is behind the mirror
d. an image that is smaller than the object and is behind the mirror

Answer;

D. An image that is smaller than the object and is behind the mirror

Explanation;Magnification is the ratio of the height of the image to the height of the object. When magnification, m, is greater than 1 the image is larger than the object, and when m is less than 1 means the image is smaller than the object.If the magnification is positive, the image is upright compared to the object; if m is negative, the image is inverted compared to the object.Magnification is negative when the image is inverted, therefore a real image.

Ais the