One of the four sections of a coordinate plane.

One of the four sections of a coordinate plane.

• A. Equilateral Triangle
• B. Quadrant
• C. XY Coordinate Plane
• D. X Axis

Answer: (B)

The coordinate plane is divided into four sections called quadrants. These regions are formed by the x- and y-axes crossing at the origin, and each quadrant represents a different combination of coordinate signs: upper-right has both x and y positive, upper-left has x negative and y positive, lower-left has both negative, and lower-right has x positive and y negative. So one of these four sections is a quadrant. The other terms don’t describe a section of the plane—an equilateral triangle is a shape, the XY coordinate plane refers to the whole plane, and the X axis is a line.

The coordinate plane is divided into four sections called quadrants. These regions are formed by the x- and y-axes crossing at the origin, and each quadrant represents a different combination of coordinate signs: upper-right has both x and y positive, upper-left has x negative and y positive, lower-left has both negative, and lower-right has x positive and y negative. So one of these four sections is a quadrant. The other terms don’t describe a section of the plane—an equilateral triangle is a shape, the XY coordinate plane refers to the whole plane, and the X axis is a line.