Can someone do what, why, and how with B and C?? PLEASE?!?!?!

Which sequence of transformations on preimage ∆abc will not produce the image ∆a'b'c'? a. reflection across the line y = x b. rotation 180° clockwise about the origin followed by a reflection across the line y = -x c. reflection across the x-axis followed by a reflection across the y-axis d. reflection across the line y = -x followed by a rotation 180° counterclockwise about the origin e. reflection across the y-axis followed by a rotation 90° clockwise about the origin

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

What are the answers for the following questions?