Friday, March 13, 2009

Math class
Ms.Sa-702

Variable:When a letter represent a number that can vary, It's called a variable.
Constant: Is a number that cannot be chance.

Problems

12•x
4÷y
3•x•y÷2

The difference between a variable is that a variable is a letter you want to pick that it could represent any number you want.However, a constant is a number that would never change.For example the year you were born would never change like a variable in an equation.

No comments: