Bouncing Ball Game Application - Move The Paddle Left And Right ?

I have to make a bouncing ball game application. all the code is given to me except for code to move the paddle left and right, and code to start the game. i have to write an if...then statement in a keydown event handler that tests whether the user presses the s key. i then have to add an elseif statement that tests whether the user pressed the left-arrow key and whether the paddle's horizontal position (rectangleX) is greater than zero. if the paddle's horizontal position equals zero, the left edge of the paddle is touching the left wall and the paddle should not be allowed to move farther to the left( i am not sure how to do this part). if the conditions are true in the if then statement, the paddle's x-position should decrease by 10. then i need an elseif statement that tests whether the right arrow key is pressed and whether the paddles x-coord is less than the width of the form minus the width of the paddle. if it equals out the paddle should not be allowed to move farther right. if both conditions are true the paddles x-coordinate is increased by 10

This is the code i have written:

Private Sub BouncingBallForm_Keydown(ByVal sender As Object, _
ByVal s As System.Windows.Forms.KeyEventArgs) _
Handles BouncingBallForm.Keydown

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