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krok68 [10]
3 years ago
7

Find the domain and range of f(x)=x/x^2-9

Mathematics
1 answer:
sladkih [1.3K]3 years ago
8 0

Answer:

Dom(f)=(-\infty, -3 )\cup (-3, 3 )\cup (3,-\infty )

Ran(f)=\matyhbb{R}

Step-by-step explanation:

f(x)=\dfrac{x}{x^2-9}

Once the denominator can't be zero, x\neq 3 and x\neq -3

Dom(f)=(-\infty, -3 )\cup (-3, 3 )\cup (3,-\infty )

The range from the graph is all Real numbers

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