Answer:
neither
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y =
x - 99 ← is in slope- intercept form
with slope m =
Parallel lines have equal slopes
slope of line b =
≠
← lines are not parallel
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= -
≠
← lines are not perpendicular
Thus lines a and b are neither parallel nor perpendicular