Is y =- 1 4x and y 4x 5 perpendicular July 8, 2019 16 32 64 128 Is y =- 1 4x and y 4x 5 parallel perpendicular or neither Is y =- 1 4x and y 4x 5 parallel or perpendicular Is y 5 4x 1 and y 5 4x 7 parallel perpendicular or neither
