Question

50 points!

For which rational expression is -5 an excluded value of x?
A) x-5/6
B) x+5/6
C) 6/x-5
D) 6/x+5

Answer 1

D

Explanation:

An excluded value is any value of x that makes the denominator of the rational expression zero as this would make the expression undefined.

Consider expression D

`(6)/(x+5)`

This will be undefined when

x + 5 = 0 ⇒ x = - 5 ← excluded value → D

Answer 2

D) 6/x+5

Hope this helps :)

Have a great day !

5INGH

Explanation:

In this example, we will use D

x + 5 = 0 ⇒ x = - 5 ( Excluded value )