**(I) Algebraic Expressions vs Equations**

The following are

**expressions**

**3***x***5 - 2***y**p*+ 2*q*- 45**mn**

**equations**:

**2***x*= 4*x*+ 8 = 20*x*² = 36**2***x*+*y*= 4

*Can you tell the difference between an expression and an equation?***(II) Coefficients, Variables and Constants**

In the following algebraic expressions:

(a) 6

*x*

*x*is a variable- 6 is the coefficient of
*x* - There is no constant

*y*+ 5

*y*is a variable- 2 is the coefficient of
*y* - 5 is the constant

*m*+ 7

*n*+ 9

*m*and*n*are variables- 3 and 7 are coefficients of
*m*and*n*respectively - 9 is the constant

*p*+ 2

*q*- 45

*p*and*q*are variables- 1 and 2 are coefficients of
*p*and*q*respectively - -45 is the constant

*a -*3

*b +*1

*a*and*b*are variables- 5 and -3 are coefficients of
*a*and*b*respectively - 1 is the constant

*x*-

*y*

*x*and*y*are variables- 1 and -1 are coefficients of
*x*and*y*respectively - There is no constant

**When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?**Click HERE to read more about these...

**Let's learn more terms that are related to Algebra through the**(select "Algebra")

*Hangman*activity
Coefficient means the number in an algebraic expression.

ReplyDeleteE.g. In 9x, 9 is the coefficient

In !0x + 3y, 3 and 10 are coefficients.

Coefficient is the numerical value in an algebraic expression.

ReplyDeleteExample : In 10n , 10 is the coefficient

Coefficients are numbers placed at the front of an unknown to show that the unknown is multiplied by that number.

ReplyDeleteexamples: In 4y, the coefficient of y is 4.

In y, the coefficient of y is 1 but we do not put 1y because 1*y=y

Coefficients can also be negative numbers example: In -2y, -2 is the coefficient of y.

Coefficient is the amount of times the unknown number is multiplied by in an algebraic expression. For example: 35x = 35 multiplied by x (unknown number)

ReplyDeleteCoefficient is the numerical part of the algebraic expression. It is placed to show that the numerical part is multiplied by the unknown(letter).

ReplyDeleteFor example: 2y : 2 is the coefficient.

Coefficient(2) is a real number before a variable(e.g. x). For example, in 2x, the 2(numeral;coefficient) would be the coefficient while the 'x' is the variable. BTWFYI I'm Ishani

ReplyDeleteCoefficient is the numerical part which is later on multiplied by the variable.

ReplyDeleteAn example is 3y. 3 is the coefficient in this case.

Coefficient is the numerical value in an algebraic expression.

ReplyDeleteFor example, 2a=>2 is the coefficient.

2a+11b=> 2 and 11 are the coefficients.

Thank you to the above responses :)

ReplyDeleteI think Wei Siew has given a very clear explanation on what's an coefficient, with several useful examples.

As some of you pointed out correctly, it refers to the value placed in front of a variable.

Coefficients are numbers placed at the front of a variable to show that the variable is multiplied by that number.

ReplyDeleteEg: In 8a, 8 is the coefficient of a or in 9z, 9 is the coefficient of z.

Coefficients can also be negative numbers example: In -6h, -6 is the coefficient of h.