The slope of a line is given.

a. Determine the slope of a line parallel to the given line, if possible.

b. Determine the slope of a line perpendicular to the given line, if possible.

mis undefined

Select one:

a.a.m= 0;b.m= 1

b.a.mis undefined;b.m= 0

c.a.m= 0;b.mis undefined

d.a.m= 0;b.m= -1