line of semtry
The original figure is called the pre-image. After the transformation it becomes the image.
line symmetry
It can be but in general a reflection in a line produces a 'mirror image'
It will be a line of symmetry creating a 'mirror image'
A plane (flat) mirror reflects an image which is the same size and shape, and colour as the object in front of the mirror. A concave mirror can produce a magnified image. If the image is in front of the mirror it is a real image; if behind it is a virtual (non-real) image. A real image can be cast upon a white the best) surface
It is a line of symmetry.
virtual
Reflection.
An image has Reflectional Symmetry if there is at least one line which splits the image in half so that one side is the mirror image of the other. Reflectional symmetry is also called line symmetry or mirror symmetry because there is a line in the figure where a mirror could be placed, and the figure would look the same.
Symmetry
Reflection about the y-axis can do that.
Symetrical
Then the figure has line symmetry.
Its called a virtual image.
It is called "image".
The original figure is called the pre-image. After the transformation it becomes the image.
Just that: reflection. There can be a virtual image, an imaginary image, an inverted image etc depenting on the shape of the surface of the mirror.