There is a number axis on which there is a point a, and the number represented by it is negative 4. Due to her carelessness, Wang Hong marks the origin of the number axis in the wrong position, so that point a just falls in the position of the opposite number of negative 4?

There is a number axis on which there is a point a, and the number represented by it is negative 4. Due to her carelessness, Wang Hong marks the origin of the number axis in the wrong position, so that point a just falls in the position of the opposite number of negative 4?

Eight units to the right