Vocabulary(basic)
What is number multiplied by the variable?
Coefficient
The coefficient of 6x is 6.
Identify the constant:
4x-z+23
23
What type of term is 17t?
Variable term
What do you call an expression that contains one or more variables?
Algebraic expression
Identify the coefficient(s):
4x+9-x-7r
4, -1, -7
*Remember to change subtraction to adding the opposite!
4x+9+(-x)+(-7r)
In the variable term 22x, what is the coefficient and what is the variable?
Coefficient = 22
Variable = x
Variable term = 22x
What is a term WITH variables in an algebraic expression?
Variable term
Ex/ 7x, -2r, n
Identify the variable(s):
7t+43+2+7v-121
t, v
What are the like terms in the following expression?
4n-5x+10x-n2
-5x and 10x
*Remember to change subtraction to addition of the opposite
4n+(-5x)+10x+(-n2)
What is a term WITHOUT variables in an algebraic expression?
Constant term
Ex/ 23, 5, -18, 31
Identify the constant(s):
6-7m+24-2b
6, 24
What are the like terms in the following expression?
2x-8+2+5x-x
2x, 5x, and -x
-8 and 2
*Remember to change subtraction to addition of the opposite
2x+(-8)+2+5x+(-x)
What are "like terms?"
Terms that are alike.
1. Constant terms
2. Variable terms with the exact same variables and exponents
How many terms are in this expression?
10+x+5x-7+8t
5
10, x, 5x, -7, 8t
What are the like terms in the following expression?
x+x2+x3+x4+x5
There are no like terms! All terms have different exponents.