lio 8 7. 5 6 4 3 2 1 If a polynomial function f(x) has roots –9 and 7-i, what must be a factor of f(x)? O (X - (7 + i)) O (X - (-7 - ;)) O (x + (7 + i)) O (x + (7 - 1)

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?