What is the domain of y=2x+3 ?

The domain of y=2x+3 is -infinity <x<infinity

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domain of y=2x+3

domain

y = 2 x + 3

- \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

in f l ec t i o n f (x) = \frac{x}{x ^{2} + 16}

d i s t an ce (3, - 7), (- 1, 2)

l in e m = - \frac{7}{6}, (- 6, - 2)

e x t re m e f (x) = - x^{4} + x^{3} + 2 x^{2}

in v erse f (x) = \frac{x + 1}{2 x + 3}