# Function and Its Domain

Not what you're looking for?

1. Determine whether the following relation represents a function. If the relation is a function then state domain and range?

{(4,6),(-2,6),(7,8),(4,13)}

Does the given relation represent a function?

2.Determine whether the following relation represents a function. If the relation is a function then state domain and range?

{(-1,-6),(2,-6),(3,-6),(4,-6)}

Does the given relation represents a function?

3.Find the domain of the function. Make sure answer is in interval notation.

g(x)=7x/x^2-4

4.Find the domain of the function. Make sure answer is in interval notation.

f(x)=5x square root of x-2

5. For the given function f and g find the folowing and state the domain of each result

f(x)=2x+1;g(x)=7x-1

a) (f-g)(x)=_____

6. For the given function f and g find the specified value of the following functions and state the domain of each one.

f(x)=x=10;g(x)=9x^2

a) (f+g)(1)=_____

##### Purchase this Solution

##### Solution Summary

The solution gives detailed steps on determining if the given points can represent a domain. The steps for finding the domain and range for a specific function are given. Finally, the operations of addtion and substractions for two functions are explained.

##### Solution Preview

1. A function is a relation if there are NO two ordered pairs which have the same first coordinate.

for {(4,6),(-2,6),(7,8),(4,13)} , the answer is no because two pairs have ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

##### Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.