Question

determine o domínio das funções:

a) y = 2x + 7

b) y = 1 / x-2

c) y = $\sqrt{x} - 2$

Answer 1

Resposta:

a) R

b) x ≠ 2

c) x ≥ 2

Passo a passo

$y=\frac{1}{x-2}\\\\x-2\neq 0\\\\x\neq 2\\\\c)y=\sqrt{x-2} \\\\x-2\geq 0\\\\x\geq 2$