The equation is .

From the definition of above it is a function because each element in the domain corresponds to exactly one element in the range.

Domain of the function is all real numbers.

Range of the function is .

There are an infinite number of irrational numbers between two integers on the number line.

The -intercept of a function is and - intercept of a function is .

The -intercept of the function is .

The function has infinite -intercepts.

The function is even because .

For every negative value in the domain of the function, the range of the function is same.

The graph of the function is discrete with for irrational numbers and for rational numbers.

There will be only lots of points and the graph would be discontinuous in nature.

It is a function.

Domain of the function is all real numbers.

Range of the function is .

The -intercept of the function is .

The function has infinite -intercepts.

The function is even.