What is the domain of f(n)= n/(15-3n) ?

The domain of f(n)= n/(15-3n) is n 5

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domain of f(n)= n/(15-3n)

domain

f (n) = \frac{n}{15 - 3 n}

n < 5 or n > 5

Interval Notation

(- \infty, 5) \cup (5, \infty)

Solution steps

Find undefined (singularity) points:

n = 5

The function domain

n < 5 or n > 5

y = x + 9

f (x) = \frac{3 x ^{2} - 9 x + 12}{x ^{2} - 10 x + 25}

y = - 2 x^{2}

f (x) = \frac{8 x}{x + 9}

f (x) = \frac{x}{x + 9}

What is the domain of f(n)= n/(15-3n) ?
The domain of f(n)= n/(15-3n) is n<5\lor n>5