All of this questions are common sense.
Read the definition of a perpendicular line
Read about the slope of a line
Learn the point- slope formula
Graph it in you calculator and you will see if it symmetrical, if it is reflected across the x or y axis. Just look at the table of x and y values.
The graph of an odd function has rotational symmetry with respect to the origin.
Compare the graphs and you will see the difference between and