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# Introduction to Graphs worksheet for class 8

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## Introduction to Graphs worksheet for class 8 Important Topics

• Introduction
• Linear Graphs
• Some Applications

## Some important Facts about Introduction to Graphs worksheet for class 8

1. Graphical presentation of data is easier to understand.
1. A bar graph is used to show comparison among categories.
2. A pie graph is used to compare parts of a whole.
3. A Histogram is a bar graph that shows data in intervals.
2. A line graph displays data that changes continuously over periods of time.
3. A line graph which is a whole unbroken line is called a linear graph.
4. For fixing a point on the graph sheet we need, x-coordinate and y-coordinate.
5. The relation between dependent variable and independent variable is shown through a graph.

## NCERT Class 8 Mathematics Solved Worksheets

• Chapter 1: Rational Numbers
• Chapter 2: Linear Equations in One Variable
• Chapter 4: Practical Geometry
• Chapter 5: Data Handling
• Chapter 6: Squares and Square Roots
• Chapter 7: Cubes and Cube Roots
• Chapter 8: Comparing Quantities
• Chapter 9: Algebraic Expressions and Identities
• Chapter 10: Visualising Solid Shapes
• Chapter 11: Mensuration
• Chapter 12: Exponents and Powers
• Chapter 13: Direct and Inverse Proportions
• Chapter 14: Factorisation
• Chapter 15: Introduction to Graphs
• Chapter 16: Playing with Numbers

## Some Application

In everyday life, you might have observed that the more you use a facility, the more you pay for it. If more electricity is consumed, the bill is bound to be high. If less electricity is used, then the bill will be easily manageable. This is an instance where one quantity affects another. Amount of electric bill depends on the quantity of electricity used. We say that the quantity of electricity is an independent variable (or sometimes control variable) and the amount of electric bill is the dependent variable. The relation between such variables can be shown through a graph.

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