Formula For Domain And Range

So the domain of the function is.

Formula for domain and range. The range of a function is all the possible values of the dependent variable y. Determine the domain and range of the function f of x is equal to 3x squared plus 6x minus 2. Any number should work and will give you a final answer between 1 and 1 from the calculator experiment and from observing the curve we can see the range is y betweeen 1 and 1 we could write this as 1 y 1.

The domain of a function is the collection of independent variables of x and the range is the collection of dependent variables of y. All real numbers except 0. And i can take any real number square it multiply it by 3 then add 6 times that real number and then subtract 2 from it.

How to find domain and range of a function. Calculate the domain and the range of the function f x 2 x. To find the domain of a function just plug the x values into the quadratic formula to get the y output.

Exclude from the domain any input values that have nonreal or undefined number outputs. Hence the domain of the exponential function is the entire real line. The domain of y sin x is all values of x since there are no restrictions on the values for x.

Let s understand the domain and range of some special functions through examples. The example below shows two different ways that a function can be represented. What is a set of all of the valid inputs or all of the valid x values for this function.

Set the denominator equal to zero and solve for x. The above list of points being a relationship between certain x s and certain y s is a relation. Set the denominator to zero.