Final answer:
The expression (6)/(x - 3) becomes undefined when the denominator is zero. Setting x - 3 = 0 and solving for x gives us the value x = 3, where the expression is undefined.
Step-by-step explanation:
The student asked what value of x makes the expression (6)/(x - 3) become undefined.
An expression becomes undefined when its denominator equals zero, because division by zero is not allowed in mathematics.
To find the value of x that makes the denominator 0, we set (x - 3) equal to zero and solve for x.
Here is the calculation step by step:
- Set the denominator equal to zero: x - 3 = 0.
- Solve for x: x = 3.
Thus, when x equals 3, the expression becomes undefined because we would be dividing by zero.