Vocabulary
What is the definition of a variable?
A letter representing an unknown number.
3 + X =
When X = 2
3+2 = 5
What are the variables ?
5 - 4x - 8y
x and y
10 - x
What is the definition of Term?
A part of an expression separated by + or -, representing a number, variable, or their product/quotient.
XY
When X=4 and Y=7
4 x 7 = 28
What are the terms ?
6m + 2n + 7 + 18
6m, 2n, 7, 18
The sum of 15 and a number ?
15 + X
What is the definition of an Expression?
Combination of numbers, variables, and operations that don't have an equal sign.
21 / x
When X=3
21 / 3 = 7
What are the Coefficients?
8y - 7 + 2x +5
8 and 2
The product of a number and 8?
What is the definition of Constants?
The value that doesn't change.
xy - 5
When x= 6 and y=8
6 x 8 - 5 = 43
What are the Constants?
b + 14x + 54 + 6g + 22
54, 22
The quotient of 25 and a number
25 / X
What is the definition of a Coefficient?
The numerical part of a term that multiplies a variable.
8 - 4x + 5y
When x = -2 and y = 6
8 -4(-2) + 5(6) = 46
What are the Coefficients?
45n + w + 4h - 16
45, 1, 4
Twice of a number
2x