Domain And Range Numbers

When using set notation inequality symbols such as are used to describe the domain and range.

Domain and range numbers. The graph of latex f x x 2 latex red has the same domain input values as the graph of latex f x frac 1 12 x 3 latex blue since all real numbers can be input values. Find the domain and range of the following function. Y y 0 r indicates range. Set the denominator equal to zero and solve for x.

Make a table of values on your graphing calculator see. However the range of the red graph is restricted to only latex f x geq0 latex or latex y latex values above or equal to latex 0. X 1 0 1. Putting it all together this statement can be read as the domain is the set of all x such that x is an element of all real numbers the range of f x x 2 in set notation is.

Domain and range graph. How to make a table of values on the ti89. The range is all real values of x except 0. Since the function is undefined when x 1 therefore the domain is all real numbers except 1.

F x 2 x 1 solution. 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.