The equation y = x + a is graphed in the cy-plane, where a is a positive constant. A second equation, y = 2 - a, is graphed in the same xy-plane. How do the slope and y-intercept of the
graph of the first equation compare with the slope and y-intercept of the graph of the second
equation?
A)The slopes are the same; the y-intercept of the first equation's graph is the
point (0.a), and the y-intercept
of the second equation's graph is the point
(0.-a)
B)The slopes are the same; the y-intercept of the first equation's graph is the
point(0, -a) and the y-intercept of the second equation's graph is the
point (0.a).
C)The y-intercepts are the same; the slope of the first equation's graph is a
and the slope of the second equation's graph is --a.
D)The y-intercepts are the same; the slope of the first equation's graph is --a.
and the slope of the second equation's graph is a