Domain Functions Worksheets
What is the Domain of a Function? The domain of a function is defined as the number of values that can go into other sets of numbers. In simpler terms, the domain includes the xvalues that can easily go into any given equation. The yvalues that we have are known as the range. The domain is the input values put in an equation for which a function produces output values. The set of input values are typically termed as the xvalues, and the obtained output values are known as the yvalues. For finding out the domain, we need to know the type of function. If we have a polynomial function without radicals or variable sin denominators, then the domain is real numbers for this function. If we have a function with a fraction having a variable in the denominator, then we set the denominator equal to zero, and we exclude the x values. If we have a function with a variable in the radical sign, then we set the terms of the radical sign greater to zero and solve to calculate the values for x. If we have a function with a natural log, then we set the terms within the parentheses greater to zero and solve for x.

Lesson
Guides students through Domain Functions. onetoone : A function f from A to B is called onetoone (or 11) if whenever f (a) = f (b) then a = b. No element of B is the image of more than one element in A.
View worksheet 
Independent Practice 1
A really great activity for allowing students to understand the concept of Domain Functions. Such as Onto: A function f from A to B is called onto if for all b in B there is an a in A such that f (a) = b. All elements in B are used.
View worksheet 
Independent Practice 2
Students find the domain of functions in assorted problems. The answers can be found below. The range is the set of all second elements of ordered pairs (ycoordinates).
View worksheet 
Homework Worksheet
Students are provided with problems to achieve the concepts we explored with this topic.
View worksheet
The Words of Tolstoy...
"A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself. The larger the denominator, the smaller the fraction."