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Number lines are like rulers because they are divided into equal sections that are marked with numbers according to an increasing/decreasing pattern, depending on the direction you are moving along the line. Before you begin doing some coordinate graphing, it is important to make sure you can navigate a number line correctly.  
Answer the questions below, using the number line as a reference.
 
Circle the figure(s) which show(s) perpendicular lines:

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Related Resources
The various resources listed below are aligned to the same standard, (5G01) taken from the CCSM (Common Core Standards For Mathematics) as the Geometry Worksheet shown above.
Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the intersection of the lines (the origin) arranged to coincide with the 0 on each line and a given point in the plane located by using an ordered pair of numbers, called its coordinates. Understand that the first number indicates how far to travel from the origin in the direction of one axis, and the second number indicates how far to travel in the direction of the second axis, with the convention that the names of the two axes and the coordinates correspond (e.g., xaxis and xcoordinate, yaxis and ycoordinate).
Example/Guidance
Coordinate Geometry
Worksheet
 Identifying XY Coordinates – based on coordinates shown on 0 to +10 grid ( 1 of 10)
 Identifying XY Coordinates – based on coordinates shown on 0 to +10 grid ( 2 of 10)
 Plotting XY Coordinates – for coordinates shown on a 0 to +10 grid ( 3 of 10)
 Plotting XY Coordinates – for coordinates shown on a 0 to +10 grid ( 4 of 10)
 The Coordinate Graphing System : foundation questions about x and yaxes
 XY Coordinates – blank grid from 0 to 10 on x and y axes
Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:
Graph points on the coordinate plane to solve realworld and mathematical problems
 Coordinate Graphing of Real World Problems (From Example/Guidance)
 Coordinate Graphing 1 : creating and plotting ordered pairs (From Worksheet)
 Coordinate Graphing 2 : creating and plotting ordered pairs (From Worksheet)