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Middle/High School Algebra, Geometry, and Statistics (AGS)
1.13 Graphs for the Staright Lines y = 0 and x = 0

Plot the following points on a graph sheet
(-4,0),(-3,0),(-2,0),(-1,0),(0,0),(1,0),(2,0),(3,0),(4,0).

Observing the above graph:

1. All points lie on X-axis.
2. The common property of all these points is its y-coordinate is zero.
3. The straight line joining all these points may be denoted as y=0.

The y-coordinate on X-axis is zero. X-axis may be denoted by the straight line y=o.

Plot the following points on a graph sheet.
(0,-1),(0,-2),(0,-3,),(0,-4),(0,0),(0,1),(0,2),(0,3),(0,4)

Observing the above graph:

1. All these points lie on Y-axis.
2. The common property of all these points is x = o.
3. The x-coordinate of any point on y-axis is zero.
4. We can denote the y-axis as x=0.

The x-coordinate on Y-axis is zero. Y-axis may be denoted by the straight line x=o.

Directions: Draw the graph for x-axis and y-axis on a graph paper.