Calculate the Domain for the Rational Function: 5/(2x - 1/2)

Question

Look at the following function:

52x12 \frac{5}{2x-\frac{1}{2}}

What is the domain of the function?

Video Solution

Solution Steps

00:00 Does the function have a domain? If yes, what is it?
00:03 To find the domain, remember that division by 0 is not allowed
00:07 Therefore, let's find the solution that makes the denominator zero
00:10 Let's isolate X
00:29 Multiply by the reciprocal, numerator by numerator and denominator by denominator
00:35 And this is the solution to the question

Step-by-Step Solution

To solve the problem of finding the domain of the function 52x12 \frac{5}{2x-\frac{1}{2}} , we need to ensure the denominator is not zero.

Here is the step-by-step solution:

  • Step 1: Identify the denominator of the function, which is 2x12 2x - \frac{1}{2} .
  • Step 2: Set the denominator equal to zero: 2x12=0 2x - \frac{1}{2} = 0 .
  • Step 3: Solve this equation for x x :

2x12=0 2x - \frac{1}{2} = 0

2x=12 2x = \frac{1}{2}

x=14 x = \frac{1}{4}

Step 4: The calculated value x=14 x = \frac{1}{4} is the value that makes the denominator zero. Hence, the domain of the function consists of all real numbers except x=14 x = \frac{1}{4} .

Therefore, the domain of the function is all real numbers such that x14 x \neq \frac{1}{4} .

The correct choice from the multiple choices is: x14 x \ne \frac{1}{4} .

The domain of the function is x14 x \ne \frac{1}{4} .

Answer

x14 x\ne\frac{1}{4}