- 14 Sections
- 42 Lessons
- Lifetime
Expand all sectionsCollapse all sections
- Chapter 1: A Square and A Cube (Square numbers, cube numbers, square roots, cube roots, properties)A Square and A Cube – Short Overview This chapter helps students understand square numbers and cube numbers, along with their important properties. It covers methods to identify perfect squares and perfect cubes, and explains how to find square roots and cube roots using prime factorisation and estimation techniques. Through MCQs with detailed explanations, students strengthen their number sense, improve calculation skills, and build a solid foundation for higher-level algebra and geometry topics in CBSE Class 8 Mathematics.3
- Chapter 2: Power Play (Laws of exponents, powers with integers, scientific notation)Power Play – Short Overview This chapter focuses on the laws of exponents and how powers work with positive and negative integers. Students learn to simplify expressions using exponent rules and understand the concept of writing large and small numbers in scientific notation (standard form). Through MCQs with clear explanations, learners develop accuracy in calculations and strengthen their foundation for advanced algebra and real-world applications involving large numbers.3
- Chapter 3: A Story of Numbers (Rational numbers, properties, operations, representation on number line)A Story of Numbers – Short Overview This chapter introduces rational numbers, their properties, and fundamental operations such as addition, subtraction, multiplication, and division. Students also learn how to represent rational numbers accurately on the number line. Through carefully designed MCQs with detailed explanations, learners strengthen their understanding of number system concepts and build a strong foundation for advanced mathematics topics in Class 8 and beyond.3
- Chapter 4: Quadrilaterals (Types, properties, angle sum, special quadrilaterals)Quadrilaterals – Short Overview This chapter explores different types of quadrilaterals, including parallelogram, rectangle, rhombus, and square, along with their key properties. Students learn about the angle sum property of quadrilaterals and understand relationships between sides and angles in special quadrilaterals. Through MCQs with detailed explanations, learners develop strong geometric reasoning skills and improve their ability to solve shape-based problems accurately.3
- Chapter 5: Number Play (Divisibility rules, factors, multiples, patterns)Number Play – Short Overview This chapter focuses on divisibility rules, factors, and multiples, helping students understand how numbers relate to one another. It also explores prime factorisation and interesting number patterns, strengthening logical thinking and problem-solving skills. Through MCQs with detailed explanations, students improve their accuracy in number-based questions and build a strong foundation for algebra and higher mathematical concepts.3
- Chapter 6: We Distribute, Yet Things Multiply (Algebraic expressions, distributive property, simplification)We Distribute, Yet Things Multiply – Short Overview This chapter introduces algebraic expressions, their terms, coefficients, and variables. Students learn to apply the distributive property and simplify expressions through proper operations and multiplication techniques. With MCQs and clear step-by-step explanations, learners strengthen their algebraic skills, improve accuracy in simplification, and build a solid foundation for solving higher-level equations in Class 8 Mathematics.3
- Chapter 7: Proportional Reasoning (Ratio, direct proportion, inverse proportion, applications)Proportional Reasoning – Short Overview This chapter introduces the concept of ratio and explores relationships between quantities through direct and inverse proportion. Students learn how to solve real-life word problems using proportional reasoning and understand how changes in one quantity affect another. Through MCQs with detailed explanations, learners develop strong analytical skills and gain confidence in solving comparison and variation-based problems in CBSE Class 8 Mathematics.3
- Chapter 8: Fractions in Disguise (Advanced fraction operations, word problems, applications)Fractions in Disguise – Short Overview This chapter deepens students’ understanding of advanced fraction operations, including addition, subtraction, multiplication, and division of complex fractions. It also focuses on solving word problems and real-life applications involving fractions. Through MCQs with detailed explanations, students enhance their calculation accuracy, strengthen problem-solving skills, and build confidence in handling fraction-based questions in CBSE Class 8 Mathematics.3
- Chapter 9: The Baudhayana-Pythagoras Theorem (Theorem, verification, applications in triangles)The Baudhayana–Pythagoras Theorem – Short Overview This chapter introduces the Baudhayana–Pythagoras Theorem, explaining the relationship between the sides of a right-angled triangle. Students learn to verify the theorem and apply it to solve problems involving unknown sides and geometric reasoning. Through MCQs with detailed explanations, learners strengthen their understanding of triangle properties and develop confidence in solving theorem-based questions in CBSE Class 8 Mathematics.3
- Chapter 10: Proportional Reasoning – 2 (Advanced ratio problems, compound proportions, applications)Proportional Reasoning – 2 – Short Overview This chapter extends the concept of ratios and proportions to advanced problems, including compound and continued proportions. Students learn to solve multi-step word problems and apply proportional reasoning in practical, real-life situations. Through MCQs with detailed explanations, learners improve logical thinking, enhance problem-solving speed, and gain confidence in handling complex proportion-based questions in CBSE Class 8 Mathematics.3
- Chapter 11: Exploring Some Geometric Themes (Angles, polygons, constructions, geometric properties)Exploring Some Geometric Themes – Short Overview This chapter focuses on important geometric concepts such as angle relationships, properties of polygons, and basic geometric constructions. Students explore how different angles and shapes are related and apply key geometric properties to solve problems. Through MCQs with clear explanations, learners strengthen their spatial reasoning skills and build a solid foundation in geometry for higher classes.3
- Chapter 12: Tales by Dots and Lines (Coordinate plane, plotting points, graphs)Tales by Dots and Lines – Short Overview This chapter introduces the coordinate plane and the basics of the Cartesian system. Students learn how to plot points, identify quadrants, and represent relationships using simple graphs. Through MCQs with detailed explanations, learners develop confidence in reading and drawing graphs, strengthening their understanding of coordinate geometry in CBSE Class 8 Mathematics.3
- Chapter 13: Algebra Play (Algebraic identities, linear equations, solving equations)Algebra Play – Short Overview This chapter focuses on algebraic identities, their expansions, and simplifications. Students also learn to form and solve linear equations in one variable, including solving equation-based word problems. Through MCQs with detailed explanations, learners strengthen their algebraic thinking, improve problem-solving accuracy, and build a strong foundation for advanced algebra topics in higher classes.3
- Chapter 14: Area (Mensuration, area of shapes, composite figures)Area – Short Overview This chapter covers key concepts of mensuration, focusing on calculating the area of various 2D shapes such as rectangles, triangles, parallelograms, trapeziums, and other polygons. Students also learn to find the area of composite figures formed by combining different shapes. Through MCQs with detailed explanations, learners improve accuracy in applying formulas and develop confidence in solving practical area-based problems in CBSE Class 8 Mathematics.3
CBSE Class 8 Maths MCQs on Graphing Linear Relationships and Data Interpretation
CBSE Class 8 Mathematics – MCQs with Answers & Explanations
Class: 8 | Subject: Mathematics
Chapter 12: Tales by Dots and Lines
Title: Graphing Linear Relationships and Data Interpretation
Strictly Based on NCERT & CBSE Board Examination Pattern
1. A linear graph represents:
A) A curved line
B) A straight line
C) A circle
D) A random shape
B) A straight line
C) A circle
D) A random shape
Correct Answer: B) A straight line
A linear relationship between two quantities forms a straight-line graph.
A linear relationship between two quantities forms a straight-line graph.
2. If cost of 1 pen is ₹10, the graph of number of pens vs cost will be:
A) Curve
B) Straight line through origin
C) Horizontal line
D) Vertical line
B) Straight line through origin
C) Horizontal line
D) Vertical line
Correct Answer: B)
Cost = 10 × number of pens. Since cost is directly proportional, the graph is a straight line passing through origin.
Cost = 10 × number of pens. Since cost is directly proportional, the graph is a straight line passing through origin.
3. A graph passing through origin indicates:
A) Inverse relation
B) Direct proportion
C) No relation
D) Constant value
B) Direct proportion
C) No relation
D) Constant value
Answer: B)
Direct proportional relationships pass through (0,0).
Direct proportional relationships pass through (0,0).
4. In distance-time graph, a straight line indicates:
A) Rest
B) Uniform speed
C) Increasing speed
D) Decreasing speed
B) Uniform speed
C) Increasing speed
D) Decreasing speed
Answer: B)
Straight line shows constant speed.
Straight line shows constant speed.
5. A horizontal line on graph shows:
A) Increase
B) Decrease
C) Constant value
D) Proportion
B) Decrease
C) Constant value
D) Proportion
Answer: C)
No change in y-value.
No change in y-value.
6. If y = 3x, the graph will be:
A) Straight line
B) Curve
C) Circle
D) Parallel to y-axis
B) Curve
C) Circle
D) Parallel to y-axis
Answer: A)
y = 3x is linear equation.
y = 3x is linear equation.
7. Data shown on graph helps in:
A) Easy comparison
B) Confusion
C) Random guessing
D) Decoration
B) Confusion
C) Random guessing
D) Decoration
Answer: A)
Graphs visually represent data clearly.
Graphs visually represent data clearly.
8. If graph is vertical line, it means:
A) x constant
B) y constant
C) Both vary
D) No data
B) y constant
C) Both vary
D) No data
Answer: A)
Vertical line shows fixed x-value.
Vertical line shows fixed x-value.
9. In linear graph, equal increase in x gives:
A) Unequal y change
B) Equal y change
C) No change
D) Curve
B) Equal y change
C) No change
D) Curve
Answer: B)
Linear relation changes uniformly.
Linear relation changes uniformly.
10. Which graph shows direct proportion?
A) Curve
B) Straight line through origin
C) Horizontal line
D) Circle
B) Straight line through origin
C) Horizontal line
D) Circle
Answer: B)
Direct proportion passes through origin.
Direct proportion passes through origin.
20. A graph helps to:
A) Understand relationship visually
B) Hide information
C) Complicate data
D) Avoid calculation
B) Hide information
C) Complicate data
D) Avoid calculation
Answer: A)
Graphs provide visual understanding of relationships between quantities.
Graphs provide visual understanding of relationships between quantities.
