Question

Identify the excluded value of the following functions.

f(x) = 5
--
x

3
y =-----
x + 4

Please help!

Answer 1

since you cannot divide by zero, the x in f(x) = 5/x cannot be zero

so x = 0 is the excluded value in f(x)

Answer 2

how about in 3/(x+4), what's the excluded value here?

Answer 3

x=-4?

Answer 4

correct, that makes the denominator zero, so you have to exclude it

Answer 5

Okay, thanks. (:

Answer 6

yw