# Want to Master the Subject of Statistics in Maths? Have a Look at Some Important Topics A line chart is a graph that uses points and the position of lines to significant changes that occur over time. The chart shows the lines that join numerous points together or it’s a line that demonstrates the relationship between different points. The graph denotes calculable data between the two variables that keep changing with the help of a line or a curve that connects several successive points. The variables in a line graph are compared on the two axes, vertically or horizontally.

## Let’s look at the kinds of line graph

• Simple Graph: Only one line is plotted.
• Multiple Graph: Multiple lines are plotted and data is compared.
• Compound Graph: Information can be plotted with a lot of data. The line at the top shows the total and the line below displays a part of the total.
• Vertical Graph: the vertical lines in this graph extend to the horizontal axis from every data point. The vertical graph is also known as a column graph.
• Horizontal Graph: The horizontal lines in this graph extend towards the earth parallelly from every data point. The horizontal graph is also known as a row graph.
• Straight Graph: This graph is shaped by sections of lines that are straight, the plotted points are joint and the data is represented. This line graph shows the changes that happen with time.

## Different fragments of a line graph:

•      Title: This describes the graph that is to be plotted.
•      Scale: The number of units utilized on the graph shows the scale.
•      Labels: Both sides of the linear graph have labels that indicate the type of data that the graph represents. The X-axis shows data points on the line and the y-axis shows the numeric value for each point on the line.
•      Bars: The bars calculate data numbers.
•      Data values: These are the real numbers for every data point.

## How to plot a linear graph? Consider the following steps:

1. Data from the data table is to be used to select an appropriate scale.
2. Draw and tag the scale. Vertical on (y-axis) and horizontal on (x-axis).
3. List every element and place it on the graph.
4. The points are joint using line segments.

How to plot a Double line graph? Consider the following steps

1. Select a suitable scale with the use of data from a table.
2. Draw and tag the scale. Vertically and horizontally.
3. List each element and place it on a graph after locating both lines.
4. Connect points using line segments for both lines separately.
5. You will have to draw double-line graphs in one chart.

Various benefits of using a Line Graph

The significant use of these graphs is done for tracking the changes over shorter and longer periods. It is useful while comparing the changes between different groups within the same period of duration. If small changes are to be represented line graphs are preferred to bar graphs.

## Scatter plots

The scatter plot represent the relationship between two variable quantities in a set of data. It denotes data points on a cartesian system or two-dimensional plane. The independent attribute is always plotted on X-axis, while the dependent attribute is on Y-axis. This kind of plotting is also known as scatter graphs or diagrams.

Along with the line graphs, scatter plots also have been used in this field. Scatter plots rapidly report data of very large volumes. Uses are as follows

• If the data points have been given for a large set
• Every set includes pair of values
• The data that is given is always in numeric form

All kinds of graphs in mathematics are really important to understand. If you have your concepts clear, you will be able to solve related problems. You are sure to get all your doubts clear if you refer to the notes from Cuemath, easily available online. You are sure to solve all the questions in your exams related to this topic if you practice a lot of problems in advance.