If you change the sign of a point’s x-coordinate, how will the location of the point change?

a. the point will move down and to the left.
b. the point will cross over the x-axis.
c. the point will cross over the y-axis.
d. not enough information is provided.

this is for 30

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′?