# Graphing Points in the First Quadrant

# Graphing Points in the First Quadrant

**Introduction:**Have you have ever played the game Battleship? If so, you already have a good understanding of how to plot points on a coordinate plane! A

**coordinate plane**is two perpendicular number lines used to graph pairs of numbers. The lines intersect at each line's zero, called the

**origin**. Each line is an axis.

**x-axis:**horizontal (left-to-right) number line**y-axis:**vertical (up-and-down) number line

You need two numbers to locate a point on a coordinate plane. These two numbers are called a

**coordinate pair**. A coordinate pair is written as two numbers inside of parentheses. The first number is the**x-coordinate**. The x-coordinate tells the distance to travel on the x-axis from the origin. The second number is the**y-coordinate**. The y-coordinate tells the distance to travel on the y-axis from the origin.- [math](5, 8)[/math]: [math]5[/math] = x-coordinate, [math]8[/math] = y-coordinate

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