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# Why is the number line called the real number?

Updated: 8/21/2019

Wiki User

8y ago

Because there is a 1-to-1 mapping between the points on the line and the set of real numbers.

Wiki User

6y ago
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Q: Why is the number line called the real number?
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### The diagram of real number system?

That's called a number line.

absolute power

### A chart about the real numbers system?

That's called a number line.

### Are fractions real numbers?

Yes. A real number is any number that could be plotted on a number line. For example, 3/4 could be plotted on a number line, and so it is real. Only square roots of negative numbers are not real: they are called imaginary.

### What is the real number represented by a point on a number line?

It is the real number whose length represents the distance from the zero on the line to the point on the line.

### What is the real number that correspondsto a point on a line?

Any real number can correspond to a point on a line.

### Does real number line correspond to an irrational number?

No. The real number line corresponds to rational AND irrational numbers.

### Can every point on the number line be named by a real number?

Yes, as long as the number line is entirely real.

### What is real number diagram?

A real number can be represented by a point on the number line.

### Is the real number 1.21?

1.21 is a real number that can be found on the number line

### Is 36 a real number?

Any number that you can put on the number line is real.