For which values of x is the expression undefined?
start fraction, x, plus, 1, divided by, 4, x, plus, 7, end fraction
4x+7
x+1
The expression is undefined when the denominator is equal to zero. In this case, the denominator is 4x + 7.
To find the values of x for which the expression is undefined, we set the denominator equal to zero and solve for x:
4x + 7 = 0
Subtract 7 from both sides:
4x = -7
Divide both sides by 4:
x = -7/4
Therefore, the expression is undefined when x = -7/4.