Variable
Variable
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A variable is
- usually denoted by a letter.
- a quantity that may change within the context of a math problem.
- also sometimes called an unknown.
Example:
Example:
2x + 3 = -5
The x is the variable. We can solve this and find that x = -4. In this case, x does not change. It's more appropriate to call it an unknown.
Example:
Example:
y = 2x + 3
In this situation, x and y are variables, meaning they can change. When you plug in something for x, it will change the value of y and vice versa.
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