The Horizontal Number Line Of A Coordinate Graph
Consider the equation y 5 = 0. I) when the equation y 5 = 0 is considered as an equation in one variable then it has a unique solution y = 5, which can be represented by a point on the number line. What is a coordinate plane? A coordinate plane is formed when a vertical number line overlaps a horizontal number line, forming a 2 2 dimensional gridded surface. It can also be called a coordinate grid.
The coordinate plane is broken down into quadrants that go in a counterclockwise pattern. The quadrants are labeled \(q1\text{,}\) \(q2\text{,}\) \(q3\text{,}\) and \(q4\) and proceed counterclockwise around the plane as shown in the graph at the left. The point at which the lines intersect is called the origin. These two axes intersect at a perpendicular angle (meaning it's 90 degrees), which forms four quadrants that create a space to locate points and graph values. Now you will learn how to determine the ordered pair for a point that is plotted on the coordinate plane. Start at the origin. ) y , x ( for the point.
numberline horizontal
