6.11a Graphing on a Coordinate Plane

Front

What is a coordinate plane?

Back

A coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis). Each point on the plane is defined by an ordered pair of numbers (x, y).

Front

What does the ordered pair (x, y) represent?

Back

The ordered pair (x, y) represents the position of a point on the coordinate plane, where 'x' is the horizontal distance from the origin and 'y' is the vertical distance from the origin.

Front

What is the origin in a coordinate plane?

Back

The origin is the point where the x-axis and y-axis intersect, represented by the coordinates (0, 0).

Front

How do you identify the x-coordinate of a point?

Back

The x-coordinate is the first number in the ordered pair (x, y) and indicates the horizontal position of the point.

Front

How do you identify the y-coordinate of a point?

Back

The y-coordinate is the second number in the ordered pair (x, y) and indicates the vertical position of the point.

Front

What does it mean for a point to be in the first quadrant?

Back

A point is in the first quadrant if both its x-coordinate and y-coordinate are positive.

Front

What does it mean for a point to be in the second quadrant?

Back

A point is in the second quadrant if its x-coordinate is negative and its y-coordinate is positive.

Front

What does it mean for a point to be in the third quadrant?

Back

A point is in the third quadrant if both its x-coordinate and y-coordinate are negative.

Front

What does it mean for a point to be in the fourth quadrant?

Back

A point is in the fourth quadrant if its x-coordinate is positive and its y-coordinate is negative.

Front

How do you plot a point on a coordinate plane?

Back

To plot a point, start at the origin (0, 0), move horizontally to the x-coordinate, and then move vertically to the y-coordinate.