Parameters and Return Values

• Parameters are variables that receive values when the function is called
• Return values let functions send data back to the caller

function add(a, b) {
	return a + b
}

const result = add(5, 3) // result is 8

1. Create a function greetPerson that takes a name parameter and returns a greeting string like "Hello, [name]!"
2. Create a function multiply that takes two numbers and returns their product
3. Create a function isEven that takes a number and returns true if even, false if odd
4. Call each function and log the results