Multiplication, addition, subtraction
There are 6 identical and symmetrical shapes if colors are ignored.
Because color is taken into account, each shape (with a distinct color) can be rotated into itself about the center of the figure through an angle of 360°.
Answer:
The shape has rotational symmetry.
The angle of rotation, taking color into account, is 360°.
the anser to that problem is -1/3
The equation of the line passing through
and
is
. Here
is the slope of the line.
Substituting numerical values, the equation of the line is

The equation of the line is 