Table of Contents

## What is the range of f/x x 1 +| x |)?

Real infinite limits So the range of our function f(x) with the domain taken as the real axis (not including infinities) is (−1,+1) .

## How do you find the range of x+ 1 x?

At 0 it’s 0, as x approaches infinity it approaches 1, so the range is [0, 1).

**What is the domain and range of 1 x-1?**

Set the denominator in 1x−1 1 x – 1 equal to 0 to find where the expression is undefined. Add 1 to both sides of the equation. The domain is all values of x that make the expression defined. The range is the set of all valid y values.

**What is the range of x?**

The range of f(x) is all the y-values where there is a number x with y=f(x).

### Is 1 x increasing or decreasing?

In your case, 1/x is strictly decreasing on (0,+∞) or any subset of it; and 1/x is strictly decreasing on (−∞,0) or any subset of that. But 1/x is not strictly decreasing on the set {−2,7}, for example. The criterion with f′(x)<0 can be used to prove f is strictly decreasing on an interval.

### What is the domain of x )= x 1?

Precalculus Examples The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values.

**How do you find the range of x?**

Overall, the steps for algebraically finding the range of a function are:

- Write down y=f(x) and then solve the equation for x, giving something of the form x=g(y).
- Find the domain of g(y), and this will be the range of f(x).
- If you can’t seem to solve for x, then try graphing the function to find the range.

**What is the range of f(x) = x?**

Range is f (x) ≥ -3. Example #4. What is the range of f (x) = x? The domain can be any real numbers. Since the numbers in the range are equal to the numbers in the domain, the range can be any real numbers as well.

#### How do you find the range of an expression with domain?

Set the denominator in 1 x 1 x equal to 0 0 to find where the expression is undefined. The domain is all values of x x that make the expression defined. The range is the set of all valid y y values. Use the graph to find the range.

#### What is the domain of the expression f(x)?

f (x) = |x| f (x) = | x | The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

**How do you find the range of a function?**

The range of a function is the set of all possible outputs of the function. When looking for the range, it may help to make a list of some ordered pairs for the function. What is the range of f (x) = x 2? Pick { -4, -3, -2, -1, 0, 1, 2, 3, 4 } as your domain. The ordered pairs are