Find the domain of the function f (x) = 2 / (8-9x)

Question

Mathematics

Matthias Stein

2 October, 20:20

Find the domain of the function f (x) = 2 / (8-9x)

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Answers (2)

Know the Answer?

Lilah · Answer 1

R/{8/9}

The bottom cannot be equal to 8/9 or this makes the equation undefined.

Yair Goodman · Answer 2

F (x) = 2 / (8-9x). This function is discontinued for the denominator value = 0

So (8-9x) ≠ 0, or x≠ 8/9

Hence the domain of f (x) = ]-∞, 8/9[ ∪ ] 8/9, + ∞[

or domain is all real number ≠ 8/9