Mathematics

Grade6

Easy

Question

# Write the coefficient of x in the following:

3x + 5

- 3
- 5
- 1
- 0

Hint:

### The above expression represents an algebraic expression. Algebraic expression has two components, variable and constant. A variable is a quantity which doesn't have a fixed value. A constant is a quantity with a fixed value. A variable is generally represented by alphabets. And constant is a numerical value. In the above expression we have to find a coefficient of the variable x.

## The correct answer is: 3

### The given expression is 3x+5.

We have to find coefficient of the variable x. Now coefficient is a constant that is placed before a variable. It means the number which a variable is multiplied by is called coefficient. In the above expression the variable is x. And we can see x is multiplied by number 3 or in other words 3 is placed before x. So, the coefficient of the variable x is 3. Also, note that 5 is only a constant. There is no variable attached to it.

Therefore, option (a) which is '3' is the right answer.

A coefficient always have to be a constant. A variable cannot be counted as coefficient. It should be fixed value.