What is the domain of y=(x+7)/(x^2+1) ?

The domain of y=(x+7)/(x^2+1) is -infinity <x<infinity

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domain of y=(x+7)/(x^2+1)

domain

y = \frac{x + 7}{x ^{2} + 1}

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

y = tan (2 x)

f (x) = \frac{x - 5}{5 - x}

y = \frac{2 x ^{2} - 3}{x ^{2} + 2 x + 1}

y = - 2 x + 125 {3, 9 \leq y \leq 50}

y = x^{2} - x - ln (x)

What is the domain of y=(x+7)/(x^2+1) ?
The domain of y=(x+7)/(x^2+1) is -infinity <x<infinity