Assertion: function's element | /r/HasProperty | represented by an interval of the x-axis
Facets:
value: in this case
type: OTHER
Source sentences:
text: In this case, an element x of the domain is represented by an interval of the x-axis, and the corresponding value of the function, f(x), is represented by a rectangle whose base is the interval corresponding to x and whose height is f(x) (possibly negative, in which case the bar extends below the x-axis).