Hello!
A variable is a number, and that number can be anything. Variables are usually symbolized as an alphabet letter.
A coefficient is a number used to multiply a variable.
A constant is a number that never changes and is on its own, meaning it doesn't have a variable connected to it.
In the expression 7x + 8,
- x is the variable because it is symbolized as an alphabet letter, in this case, it is x
- 7 is the coefficient because it is used to multiply the variable, x
- 8 is the constant because it is on its own and does not have a variable connected to it
Answers:
Variable: x
Coefficient: 7
Constant: 8