Consider the following function:
2x−13x+4
What is the domain of the function?
To determine the domain of the function 2x−13x+4, follow these steps:
- Step 1: Identify the denominator of the rational function, which is 2x−1.
- Step 2: Set the denominator equal to zero to find the values of x that make the function undefined:
2x−1=0.
- Step 3: Solve for x:
Add 1 to both sides: 2x=1.
Divide both sides by 2: x=21.
The value x=21 makes the denominator zero, which means the function 2x−13x+4 is undefined at x=21. Therefore, this value must be excluded from the domain.
The domain of the function is all real numbers except x=21.
Therefore, the solution to the problem is x=21.
x=21