Look at the following function:
3x−12x+2
What is the domain of the function?
To find the domain of the function 3x−12x+2, we must ensure that the function is defined for all values of x except where the denominator is zero.
Follow these steps to determine the domain:
- Step 1: Identify the denominator of the function. The denominator is 3x−1.
- Step 2: Set the denominator equal to zero and solve for x:
3x−1=0
- Step 3: Solve the equation 3x−1=0:
3x=1
x=31
- Step 4: State the domain. Since the function is undefined at x=31, the domain consists of all real numbers except x=31.
The domain of the function 3x−12x+2 is therefore all real numbers x such that x=31.
Thus, the solution is: x=31.
x=31