Coordinate Plane

Coordinate Plane

Coordinate Plane

The coordinate plane is a two-dimension plane that is 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 state the coordinate location of each point. The origin is located at (0,0).

Multiple Choice

Ordered pair (0,0) is also known as the ___.

• y-axis
• x-axis
• origin

Multiple Choice

How do you write an ordered pair?

• (X,X)
• (Y,X)
• (X,Y)
• (Y,Y)

Plotting Points

Although there are two coordinates given for an ordered pair, it is a series of these two movements that result in one plotted point.

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

Multiple Choice

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

• true

• false

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 both x and y are located.

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

Multiple Choice

What is the ordered pair for point A?

• ( 2, 0)
• ( 0 , 2)
• (0, -2)
• (-2,0)

Multiple Choice

What error did the student make when plotting the point (3, 4) according to the picture?                                                                                                                                                                                                                                                                                                                                                                         

• The student moved left along the x-axis when he should have moved right
• The student plotted the y-coordinate in place of the x-coordinate
• The student didn't make a mistake
• Both Options 1 and 2

Multiple Choice

Which axis runs horizontally?

• x
• y

Multiple Choice

Which axis runs vertically?

• x
• Y

Multiple Choice

Where is point E located?

• ( 2, 0 )

• ( 2 , 2 )

• ( 0 , 2 )

• ( 0 , 0 )