Graphing Polygons & Reflecting in the Coordinate Plane Core 3

Front

What is the y-axis in the coordinate plane?

Back

The vertical line in the coordinate plane where the x-coordinate is 0.

Front

What happens to the x-coordinate when a point is reflected over the y-axis?

Back

The x-coordinate changes sign (it becomes its opposite).

Front

What is a polygon?

Back

A closed figure formed by a finite number of straight line segments.

Front

How many sides does a quadrilateral have?

Back

4 sides.

Front

What is the definition of reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

What are the coordinates of the origin in the coordinate plane?

Back

(0, 0).

Front

How do you reflect the point (x, y) over the x-axis?

Back

The reflected point is (x, -y).

Front

What is the formula for finding the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

What is the definition of an octagon?

Back

A polygon with 8 sides.

Front

How do you identify a polygon on a coordinate plane?

Back

By plotting its vertices and connecting them with straight lines.