What is the domain of f(x)=log_{10}(x^2-9x) ?

The domain of f(x)=log_{10}(x^2-9x) is x 9

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domain of f(x)=log_{10}(x^2-9x)

domain

f (x) = lo g_{10} (x^{2} - 9 x)

x < 0 or x > 9

Interval Notation

(- \infty, 0) \cup (9, \infty)

Solution steps

Find positive values for logs:

x < 0 or x > 9

The function domain

x < 0 or x > 9

f (x) = 3 x - 2

f (x) = lo g_{2} (8 - 2 x - x^{2})

f (x) = ln (x + 1) - ln (3 - x)

f (x) = \frac{∣ x ∣}{∣ x ∣ + 1}

81 x - 80

What is the domain of f(x)=log_{10}(x^2-9x) ?
The domain of f(x)=log_{10}(x^2-9x) is x<0\lor x>9