On a coordinate plane, kite U V W X with diagonals is shown. Point U is at (negative 2, 5), point V is at (5, 4), point W is at (8, negative 5), and point X is at (negative 1, negative 2). Prove that the diagonals of kite UVWX are perpendicular. Step 1: Determine the slope of XV. The slope of XV is . Step 2: Determine the slope of UW. The slope of UW is . Step 3: The slopes of the diagonals are . The diagonals of kite UVWX are .