A line segment is different from a line in that a segment has TWO END POINTS.
A line segment has two end points while a line has only one end point. Also you can measure the length of a line segment but you can not measure the length of a line, that is because it continues indefinitely.
Step-by-step explanation:

First, let's distribute the terms outside each parentheses to get rid of them:


Next, let's move the terms with an
variable to the left side of the equation, and everything else to the right side:


Answer:
A) Reflection.
Step-by-step explanation:
From the figure shown, we can see that the blue triangle is flipped about the x-axis to form the red triangle.
When an object is flipped about a line, then this transformation is called reflection about that line.
Thus, we can say that reflection is taking place in the figure shown in which the x-axis is acting like a mirror. The blue triangle is the pre-image and the red triangle is the image after reflection.
The reflection about x-axis is given by:
We can check the co-ordinates of the triangles and confirm the the transformation occurring
Points of pre-image triangle:

Points of image triangle

Thus, the transformation is reflection.
Left to right because in order of operations PEMDAS, The multiplication and division it's which one is first (which is which one is on the left)