Mathematics

Problem

State the domain and range of each function: a. a

f(x) = \sqrt{x+6}

b. b

f: x \mapsto \frac{1}{x^2}

c. c

f(x) = \frac{1}{x+1}

d. d

y = -\frac{1}{\sqrt{x}}

e. e

f: x \mapsto \frac{1}{3-x}

f. f

f: x \mapsto \sqrt{4-x}