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"y = f(x) is a function if it passes the vertical line test. It is a 1-1 function if it passes both the vertical line test and the horizontal line test. " -

In order to be a one-to-one function, it first has to BE a function and pass the vertical line test. For example, a relation on a graph like a circle that does not pass the vertical line test is not function nor one-to-one.

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What does a one to one function look like?

One to one functions on a graph can vary. To determine if a function is one to one, a horizontal line can only intersect the function once. If it intersects the function more than once, it is not a one to one function.


Define one-to-one function?

the function (x),sory I can`t use the sign of the function because it is not available. the function of (x)=4x+4 is one to one function assume function(x1)= function(x2) then 4(x1)+4 =4(x2)+4 4(x1)=4(x2) (x1)=(x2) hence,the function is one to one


What does the horizontal line tell you about a function?

If the function is a one-to-one function, therefore it has an inverse.


Is a piecewise function one to one?

A piecewise function can be one-to-one, but it is not guaranteed to be. A function is considered one-to-one if each element in the domain maps to a unique element in the range. In the case of a piecewise function, it depends on the specific segments and how they are defined. If each segment of the piecewise function passes the horizontal line test, then the function is one-to-one.


Is a inverse also a function?

Yes, an inverse can be a function, but this depends on the original function being one-to-one (bijective). A one-to-one function has a unique output for every input, allowing for the existence of an inverse that also meets the criteria of a function. If the original function is not one-to-one, its inverse will not be a function, as it would map a single output to multiple inputs.


How do you describe a function in algebra?

a function is a one-to-one and many-to one relation


Describe what it means for a function to be one to one?

It is the function for which all the elements of the range of the function corresponds to exactly one element of the domain.


Is the invertible to be one to one function?

Yes, a function needs to be one-to-one in order to have an inverse.


Is the absolute value function and the greatest integer function one to one?

Neither of the two are one-to-one


What is a function in which each y-value corresponds to only one x-value?

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


Does the greatest integer function have an inverse function?

Inverse of a function exists only if it is a Bijection. Bijection=Injection(one to one)+surjection (onto) function.


Is the graph of every line a function?

No. One argument of function may have only one value. So, if it has more than one value, it is not a function.


What is the difference between many to one function and one to one function?

A many-to-one function is a type of function where multiple input values can map to the same output value. In contrast, a one-to-one function (or injective function) ensures that each input value maps to a unique output value, meaning no two different inputs share the same output. Thus, in a one-to-one function, every output corresponds to exactly one input, while in a many-to-one function, one output can correspond to several inputs. This distinction is crucial in understanding the behavior and properties of functions in mathematics.


In a function can an input have more than one outputs?

No. If an input in a function had more than one output, that would be a mapping, but not a function.


What does excel do if a function is volatile?

It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.It is a function that recalculates when the spreadsheet is changed or opened. The NOW function is one good example, as is the RANDBETWEEN function.


Is every on-to function a one-one function?

No. The function y = x2, where the domain is the real numbers and the codomain is the non-negative reals is onto, but it is not one to one. With the exception of x = 0, it is 2-to-1. Fact, they are completely independent of one another. A function from set X to set Y is onto (or surjective) if everything in Y can be obtained by applying the function by an element of X A function from set X to set Y is one-one (or injective) if no two elements of X are taken to the same element of Y when applied by the function. Notes: 1. A function that is both onto and one-one (injective and surjective) is called bijective. 2. An injective function can be made bijective by changing the set Y to be the image of X under the function. Using this process, any function can be made to be surjective. 3. If the inverse of a surjective function is also a function, then it is bijective.


Why does a function only have one output?

That is the definition of a function.


What is a type of function whose graph is a nonvertical line?

A monotonic, or one-to-one function.


How many functions does one enyme have?

One function. A enzyme is particular about it's substrate, so the enzyme can catalyze one reaction by lowering that reaction's activation energy.


Can an invertible function have more than one x-intercept?

No. If the function has more than one x-intercept then there are more than one values of x for which y = 0. This means that, for the inverse function, y = 0 should be mapped onto more than one x values. That is, the inverse function would be many-to-one. But a function cannot be many-to-one. So the "inverse" is not a function. And tat means the original function is not invertible.