The additive inverse.
It depends on what you mean by an opposite. Every real number has an additive opposite but 0 does not have a multiplicative opposite.
It is the distance from the origin (point 0) to the given point, taking account of the scale.
It depends on what you mean by an opposite. Every real number has an additive opposite but 0 does not have a multiplicative opposite.
No. The real number line corresponds to rational AND irrational numbers.
Any number that you can put on the number line is real.
It is the real number whose length represents the distance from the zero on the line to the point on the line.
by seeing how far the distance is from the number line
It is a representation where the distance from a reference point - the origin - represents the value of the number.
It depends on what you mean by an opposite. Every real number has an additive opposite but 0 does not have a multiplicative opposite.
It is a representation where the distance from a reference point - the origin - represents the value of the number.
Because of the definition of addition and subtraction. When looking at a real number line: when you add you move to the left or up, when you add the opposite of a number you move in the opposite direction.
It is the distance from the origin (point 0) to the given point, taking account of the scale.
Yes. Real numbers are points along a continuous infinite number line with its midpoint at 0.
Yes, because the distance is a metric which is defined in that way.
Yes, because the distance is a metric which is defined in that way.
It depends on what you mean by an opposite. Every real number has an additive opposite but 0 does not have a multiplicative opposite.
Any real number can correspond to a point on a line.