# What Do You Know About Intro To Variables?

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A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y. You should learn about variables by taking this quiz.

• 1.

### Variables is a topic under?

• A.

Equation

• B.

Decimals

• C.

Algebra

• D.

BODMAS

A. Equation
Explanation
Variables is a topic under algebra. In algebra, variables are used to represent unknown quantities or values that can change. Equations, on the other hand, are mathematical statements that involve variables and express the equality between two expressions. Therefore, variables are a fundamental concept in algebra and are directly related to equations.

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• 2.

### Equation is a topic under which subject?

• A.

Mathematics

• B.

Music

• C.

Creative Art

• D.

Sociology

A. Mathematics
Explanation
The correct answer is Mathematics because equations are a fundamental concept in mathematics. Equations are used to represent mathematical relationships and solve problems. They involve variables, constants, and mathematical operations. Equations are used in various branches of mathematics, such as algebra, calculus, and geometry. Therefore, it is clear that equations are a topic under the subject of mathematics.

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• 3.

### A number on its own is called a .....

• A.

Coefficient

• B.

Constant

• C.

Variables

• D.

Operator

B. Constant
Explanation
A number on its own is called a constant because it is a fixed value that does not change. Unlike variables, which can vary or be assigned different values, constants remain the same throughout a problem or equation. Coefficients, on the other hand, are the numerical factors that multiply variables, and operators are symbols used to perform mathematical operations. Therefore, the correct answer is constant.

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• 4.

### ..... is a number used to multiply a variable

• A.

Variable

• B.

Constant

• C.

Operator

• D.

Co-effient

D. Co-effient
Explanation
A coefficient is a number used to multiply a variable. In algebraic expressions, variables are often multiplied by coefficients to represent the relationship between the variable and the other terms in the expression. Coefficients can be positive or negative and help determine the scale or magnitude of the variable. They are essential in solving equations and simplifying expressions.

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• 5.

### An/a ...... is a symbol (such as +, ×, etc) that shows an operation (ie we want to do something with the values).

• A.

Operator

• B.

Constant

• C.

Co-efficient

• D.

Variable

A. Operator
Explanation
An operator is a symbol that represents an operation to be performed on values. It can be a mathematical symbol like + or ×, or a logical symbol like && or ||. Operators are used to manipulate or combine values in expressions or equations. They indicate the type of operation that needs to be done with the given values.

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• 6.

### Mathematics is usually taught at ....?

• A.

Museum

• B.

Car park

• C.

School

• D.

Mosque

C. School
Explanation
Mathematics is usually taught at school because it is an essential subject that provides students with the foundational skills and knowledge needed for various academic and real-life applications. Schools have dedicated math teachers, curriculum, and resources to ensure that students receive a comprehensive education in mathematics. Additionally, schools provide a structured learning environment where students can engage in discussions, ask questions, and receive guidance from their teachers, fostering a deeper understanding of mathematical concepts.

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• 7.

### ..... are terms whose variables (and their exponents such as the 2 in x2) are the same.

• A.

Equation

• B.

Exponent

• C.

Like Terms

• D.

Constant

C. Like Terms
Explanation
Like terms are terms whose variables (and their exponents) are the same. In other words, like terms have the same combination of variables and exponents. For example, 3x^2 and 4x^2 are like terms because they both have the variable x raised to the power of 2. However, 3x^2 and 4x^3 are not like terms because they have different exponents. Like terms can be combined or simplified by adding or subtracting their coefficients while keeping the variables and exponents the same.

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• 8.

### "Variable" comes from a .... word?

• A.

Greek

• B.

Latin

• C.

Chinese

• D.

Spanish

B. Latin
Explanation
The word "variable" originates from the Latin word. Latin has had a significant influence on the development of many languages, including English. In Latin, "variable" translates to "variabilis," which means something that is subject to change or variation. This term is commonly used in mathematics and programming to refer to a symbol or value that can change during the execution of a program or the solving of an equation.

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• 9.

### Who among these people is not a scientist?

• A.

Isaac Newton

• B.

Bill Nye

• C.

Bill Clinton

• D.

Albert Einstein

C. Bill Clinton
Explanation
Bill Clinton is not a scientist because he is a politician and served as the 42nd President of the United States. Although he may have a background in law and politics, he does not have a scientific background or contribute to scientific research or discoveries like the other individuals listed.

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• 10.

### François Viète introduced at the end of .... the idea of representing known and unknown numbers by letters, nowadays called variables.

• A.

11th century

• B.

16th centuryi

• C.

13th century

• D.

14th century

B. 16th centuryi
Explanation
In the given passage, it is stated that François Viète introduced the idea of representing known and unknown numbers by letters, which are now called variables. The passage does not provide a specific century, but the correct answer is "16th century" because it is the only option that matches the information given.

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• Current Version
• Mar 19, 2023
Quiz Edited by
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• Jan 18, 2018
Quiz Created by
Livyn

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