Vocabulary
A letter of symbol that represents an unknown value. For example: 5x - what is x?
Variable
Identify the constant term:
4x + 7
7
Evaluate if x = 4
3x
12
Write an expression:
5 more than a number, n
5 + n
n + 5
Identify the coefficient:
11y + 9
11
A number without a variable.
Example: 5x + 4, what is 4?
Constant
Identify the coefficient:
9m - 3
9
Evaluate if n = 7
2n + 5
19
Write an expression:
7 less than a number, x
x - 7
Evaluate if x = 3
x + 12
15
Number in front of (being multiplied by) a variable.
Coefficient
How many terms are there?
5b - 3f + 9
3
5b, -3f, 9
Evaluate if p = 2
10 - 3p
Write an expression:
3 more than the product of 4 and a number, y
3 + 4y
4y + 3
Write an expression:
10 deceased by a number, t
Parts of an expression separated by a plus or minus sign.
Terms
Identify the variables:
2x + 3y - 8
x & y
Evaluate if a = 3 & b = 5
4a + 3b
27
Write an expression:
Twice a number, k
2k
Evaluate if d = 6
5d - 2
28
Mathematical statement without an equals sign.
Example: 8x + 5
Expression
Identify the coefficient(s):
6x - 1/2y + 10
6 & -1/2
Evaluate if x = 4
(x + 3)²
49
Write an expression:
The quotient of a number j and 6, minus 2
j/6 - 2
How many terms are in the expression?
8x - 3y + 12
3
8x, -3y, 12