That's a normal function. It means that it passes the vertical line test. A function where there is only one y-value for each x-value and only one x-value for each y-value is called a one-to-one function. The inverse of a one-to-one function is also a function.
many-to-one function. ~APEX
A relation is any set of ordered pairs.A function is a relation in which each first element corresponds to exactly one second element
Not necessarily. x to sqrt(x) is a relation, but (apart from 0) the first component in each pair corresponds to two second components eg (4, -2) and (4, +2). The square root is, nevertheless, a relation, though it is not a function.
It can have any shape that you like. The main point is that it is repeated for each period.
When you see the actual function (e.g. f(x) = ...) you can know what each input corresponds to, and can construct any table. If you are given just the table, you cannot always predict the function correctly, since the function the table seems to represent does not necessarily have to be that function. For example, it might seem that x : f(x) -2 -4 -1 -2 0 0 1 2 2 4 would correspond to f(x) = 2x, but this is not necessarily the case. There could be some arbitrary function that just happens to contain those five points.
Each number corresponds to a letter of the alphabet, 1 = A, 2 = B etc. When decoded the message reads, Happy New Year.
It is the function for which all the elements of the range of the function corresponds to exactly one element of the domain.
A Function
A one-to-one or injective function.
A rule to get (calculate) a number from another number. ans.A function is a relation in which each element of the 1st set,it corresponds to one and only one element in the 2nd set.
A relation is any set of ordered pairs.A function is a relation in which each first element corresponds to exactly one second element
Not necessarily. x to sqrt(x) is a relation, but (apart from 0) the first component in each pair corresponds to two second components eg (4, -2) and (4, +2). The square root is, nevertheless, a relation, though it is not a function.
It is a mapping. The information provided is not sufficient to determine if it is a function, an inverse function or neither.
Each period corresponds to the number of shells (energy levels) contained in the atom.
The class interval.
number of classes
an arrangement of nucleotides
What is the function of each chromosome?"