A diver is 18 feet below sea level. After he swims up 11 feet towards the surface, what is his elevation, written as an integer?
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<em><u>Question:</u></em>
For which value(s) of x will the rational expression below be undefined? Check all that apply.
(x-3)(x+6)/x+7
<em><u>Answer:</u></em>
For x = -7 the rational expression is undefined
<em><u>Solution:</u></em>
<em><u>Given rational expression is:</u></em>
We have to find the value of x for which the rational expression becomes undefined
A rational expression is undefined when the denominator is equal to zero
Here, the denominator becomes zero when x = -7
Substitute x = -7 in given
Thus for x = -7 the rational expression is undefined
