Coordinate Planes Review

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 are the four quadrants of a coordinate plane?

Back

The four quadrants are: Quadrant I (x > 0, y > 0), Quadrant II (x < 0, y > 0), Quadrant III (x < 0, y < 0), Quadrant IV (x > 0, y < 0).

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is the opposite of an integer?

Back

The opposite of an integer is the number that is the same distance from zero on the number line but in the opposite direction. For example, the opposite of -3 is 3.

Front

How do you find the distance between two points on a number line?

Back

To find the distance between two points, subtract the smaller number from the larger number. The result is the distance.

Front

What does it mean for two points to be 'exactly 6 units apart'?

Back

It means that the distance between the two points on the number line is 6. For example, if one point is at 2, the other point could be at -4 or 8.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals along its length, used to represent numbers visually.

Front

What is the significance of 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). It serves as the reference point for all other points.

Front

How do you identify the quadrant of a point?

Back

To identify the quadrant of a point (x, y), check the signs of x and y: Quadrant I (both positive), Quadrant II (x negative, y positive), Quadrant III (both negative), Quadrant IV (x positive, y negative).

Front

What is the x-axis?

Back

The x-axis is the horizontal line in a coordinate plane where the y-coordinate is zero. It represents all points with a y-value of 0.