10. What makes an equation a quadratic? A. The equation has a variable multiplied by itself 3 times. A cubed variable.
B. The equation has a variable by itself. x raised to the first power.
C. The equation has a variable multiplied by a number. For example 3x
D. The equation has a variable multiplied by itself. A squared variable.

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′?