Which figure shows a reflection of ​pre-image QRS​ over the line t? On a grid, triangle Q R S is to the left of line t, and triangle Q-prime, R-prime, S-prime is to the right of line t. Segment R S is horizontal and is two units below vertex Q. Segment R-prime, S-prime is horizontal and is two units below vertex Q-prime. Segment R-prime, S-prime is on the same horizontal line as segment R S. Vertex Q is five units to the left of line t, and vertex Q-prime is five units to the right of line t. Vertex R is seven units to the left of line t, and vertex R-prime is seven units to the right of line t. Vertex S is two units to the left of line t, and vertex S-prime is two units to the right of line t.

On a grid, triangle Q R S is to the left of line t, and triangle Q-prime, R-prime, S-prime is to the right of line t. Segment R S is horizontal and is two units below vertex Q. Segment R-prime, S-prime is horizontal and is two units below vertex Q-prime. Segment R-prime, S-prime is on the same horizontal line as segment R S. Vertex Q is five units to the left of line t, and vertex Q-prime is four units to the right of line t. Vertex R is seven units to the left of line t, and vertex R-prime is two units to the right of line t. Vertex S is two units to the left of line t, and vertex S-prime is seven units to the right of line t.

On a grid, triangle Q R S is to the left of line t, and triangle Q-prime, R-prime, S-prime is to the right of line t. Segment R S is horizontal and is two units below vertex Q. Segment R-prime, S-prime is horizontal and is two units above vertex Q-prime. Segment R-prime, S-prime is two units higher than segment R S. Vertex Q is five units to the left of line t, and vertex Q-prime is four units to the right of line t. Vertex R is seven units to the left of line t, and vertex R-prime is two units to the right of line t. Vertex S is two units to the left of line t, and vertex S-prime is seven units to the right of line t.