Locating Points on X, Y Plane

Coordinate Plane

​

​Dr. Tom Giles

Coordinate Plane

The coordinate plane is a two-dimensional plane formed when the x-axis (running horizontally - left/right) intersects with the y-axis (running vertically - up/down).

Origin

The x-axis and y-axis intersect at a point called the ORIGIN. Each point on the coordinate plane can be represented by an ordered pair (x.y), which states the coordinate location of each point. The origin is located at (0,0).

Quadrants

This intersection also creates four quadrants where points can be plotted.

To name quadrants, begin at the top right, where all the positive values of x and y are located.

This is Quadrant I. To name the others, move in a counterclockwise rotation.

Plotting Points

Although two coordinates are given for an ordered pair, a series of these two movements results in one plotted point.

First, follow the x to move left/right, and then follow the y to move up/down.

Multiple Choice

The coordinate plane is divided by a horizontal number line called ______________

• x axis

• y axis

• origin

• quadrant

Multiple Choice

The coordinates for the origin in the coordinate plane are________

• (3,8)

• (0,0)

• (g,y)

• (1,1)

Multiple Choice

If my coordinates are (3, 4) what is my y?

• 3

• 4

• there is no y

Multiple Choice

In which quadrant is letter N?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Multiple Choice

In which quadrant is letter P?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Multiple Choice

If I want to plot point (4,9), I will go up 4 and over 9.

• true

• false

Multiple Choice

What is the coordinate for C?

• (2,4)

• (4,2)

• (2,5)

• (-2,4)

Multiple Choice

What is the correct coordinate for letter A?

• (2,2)

• (2,-2)

• (2,4)

• (-2, 2)

Multiple Choice

What is the coordinate for D?

• (2,-2)

• (2,2)

• (-2,-2)

• (-2, 2)

Multiple Choice

What is the coordinate for B?

• (2,-2)

• (2,2)

• (-2,-2)

• (-2, 2)

Multiple Choice

What is the coordinate for letter M?

• (0,-6)

• (0,0)

• (6,6)

• (-6,0)

Multiple Choice

What letter is at (-3,7)

• There is no letter at those coordinates.
• T
• E
• H

Multiple Choice

Point W is located at this coordinate.

• (0, -3)

• (-3, 0)

• (0, 3)

• (3, 0)