Purchase Solution

Algebra - Functions and Domains

Not what you're looking for?

Ask Custom Question

For the given functions f and g, find the following functions and state the domain of each.
(a) f + g   (b)f - g  (c)f x g  (d) f / g

f(x)= square root of x + 1;  g(x) = 2 / x

Purchase this Solution

Solution Summary

Operations are performed on two functions and domains are found. The square roots of functions are given.

Solution Preview

We first have to find the domains of f and g seperately.
Df={x in R| x>=-1}
Dg={x in R| x~=0}
(Note that ~= means is not equl to).

(a) ...

Purchase this Solution

Free BrainMass Quizzes
Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Solving quadratic inequalities

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

Probability Quiz

Some questions on probability

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.