Four Quadrants on a Graph  We know that the two axes X and Y divided the plane into four sections. These four sections are called the Quadrants (one fourth section). The plane is called Cartesian plane or Coordinate plane or the XY plane.  The plural of axis is axes. The quadrants are labelled with Roman numbers […]

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Worksheets – Set Theory   8 Different Types of Questions on Sets with Answers. Question (1) Which of the following are sets. (i) The collection of all good books in a library. (ii) The collection of all even numbers less than 10. (iii) The collection of all dishonest people in a village. (iv) The collection of all students in […]

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      What is a Rational Number                     Rational Numbers The word comes from “Ratio”, means comparison of two or more numbers. The natural numbers, whole numbers and integers all are the set of a rational number means any number that can be rewritten in the […]

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What is an Absolute value  Absolute value  The absolute value of a number is distance from zero on a number line. The distance from zero of a number, on a number line is called its Absolute value. Number line For example – The absolute value of 4 is -4 and the absolute value of -4 and […]

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Cube Root – Definition – Examples The Cube root of a number, is a number when multiply three times gives that number. Symbolic form of Cube Root is  ∛  ∛  is the radical symbol of root. The little threerepresents that it is cube root. The value of Index is 3, the Radicand is 8 and Radical symbol is […]

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Solve linear equations in one variable We will learn how to solve linear equations using mathematical operations, like addition, subtraction, multiplication and division.  Here are steps to solve a linear equation in one variable. When variables on both sides of the equations, then following steps are followed for solving the equations. Some examples are given […]

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Representation of numbers on Number Line Natural numbers Natural numbers : A set of counting numbers, is known as natural numbers. N = (1, 2, 3, 4, 5,…..) This is a number line for Natural Numbers. Whole numbers Whole numbers : When we add the number zero (0) to the natural numbers, we get whole numbers. W = […]

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Range – Definition – Examples – Formula – Statistics Definition: In statistics and mathematics, range is defined as the difference between the highest and lowest value in a set of data. Range Formula The formula for the range is the highest(maximum)value minus lowest(minimum) value in a data set. Range = Highest value – Lowest value […]

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                 Additive Inverse Definition: In mathematics, the additive inverse of a number is what we add to a number to create the sum of zero.  So in other words, we can say that the additive inverse of x is -x, which is equal and opposite in sign to it. […]

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