Mathematics: Look at the rational expression below. x^2-4/2-x which value of x makes the expression undefined?

Look at the rational expression below. x^2-4/2-x

dbuchlerdb5599

02.06.2020

The answer would 2, since you cannot divide anything by 0 as it would be undefined. 2 is the only number that gives you this option

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xxaurorabluexx

02.06.2020

given rational function is undefined for x = 2

Step-by-step explanation:

The given rational function is

$\frac{x^2-4}{2-x}$

The rational function is undefined if the denominator is zero.

Hence, the given rational function is undefined if

2-x=0

Solve the equation for x

x=2

Therefore, the given rational function is undefined for x = 2

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shartman22

09.02.2021

Domain and range is the same thing as (x,y) your domain is your x value and your range is your y value.

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