Which relation is a function?

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.

Yvaries inversely as x. y =12 when x=5. find y when x=4