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Which equation describes a relationship such that x = 1 must be excluded from the domain?

y = 1/1-x

y = 2 + x

y = √x

y = x^ (x+1)

Which equation describes a relationship such that x = 1 must be excluded from the-example-1

1 Answer

5 votes

Answer:

First choice

Explanation:

The domain refers to all possible values that could be plugged into the function.

The first choice,
(1)/(1-x), will not be valid for the value
x=1 because when
x is 1 the denominator becomes zero.

Division by zero will produce an undefined result, which would be represented by an asymptote when graphing the function.

User Andy Irving
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