Question

dash is the another name for the number zero​

Answer 1

In maths,

Zero (of a function) Where a function equals the value zero (0). Also called "root".

Answer 2

Step-by-step explanation:

In certain contexts, zero and nothing are interchangeable, as is "null". However, in mathematics and many scientific disciplines, a distinction is made (see null). The number 0 is represented by zero while null is a representation of an empty set {}.