For what value of x is \(\frac{4 – 2x}{x + 1}\) undefined.
- 2
-
-1
- 1
- -2
The correct answer is: B
Explanation
A rational expression is undefined when the denominator is equal to zero.
when x = -1
The denominator in this equation : x + 1
--> -1 + 1 = 0
This expression is undefined when x = -1