The slope of pois (v – z) divided by V
The slope of Pro is
v divided by
(w + a) - (x + a).
Both lines have a slope that is
v divided by
Therefore, the lines are

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0