Domain And Range For Y X 2 1

Start with the assumption that the domain is all real numbers.

Domain and range for y x 2 1. The range is the set of all valid values. Domain and range tips for entering queries. In this case there is no real number that makes the expression undefined. For the codomain try and solve the equation math y dfrac x 2 1 x 2 math this becomes.

The domain is where the x s live for y x 2 1 it doesn t matter what value x has it can be plugged into this equation and you will get a. Find the domain and the range after graphing. Make a table of values on your graphing calculator see. To avoid ambiguous queries make sure to use parentheses where necessary.

How to make a table of values on the ti89. You can compute the expression for any real value of math x math. The domain and range of a function is all the possible values of the independent variable x for which y is defined. As a function table and as a set of coordinates.

Y x 2 1 domain. In this case there is no real number that makes the expression undefined. Then look at your equation to see if certain forms there restrict the values of x. 1 x 2 which means x cannot 2 sqrt x 2 which requires that x be 2.

You can take a good guess at this point that it is the set of all positive real numbers based on looking at the graph. The domain of the expression is all real numbers except where the expression is undefined. Find the domain of 1 e 1 x 1 function domain. From the above graph you can see that the range for x 2 green and 4x 2 25 red graph is positive.

The example below shows two different ways that a function can be represented. Enter your queries using plain english. Find the domain and range y 3x 1. Find the domain and range of a function with a table of values.

The range of a function is all the possible values of the dependent variable y. Domain of log x x 2 1 x 2 1 domain. Functions are a correspondence between two sets called the domain and the range when defining a function you usually state what kind of numbers the domain x and range f x values can be but even if you say they are real numbers that doesn t mean that all real numbers can be used for x it also doesn t mean that all real numbers can be function values f x. Square root of cos x.