zbiorem wartości funkcji Marta:

	2x+4
zbiorem wartości funkcji f(x)=		jest?
	|x+2|

Tragos:

	2(x+2)
f(x) =
	|x+2|

D: x ≠ −2 −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− 1 przypadek x + 2 ≥ 0

	2(x+2)
f(x) =		= 2
	x+2

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− 2 przypadek x + 2 < 0

	2(x+2)
f(x) =		= −2
	−(x+2)

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− ZW_f = {−2, 2}

Marta: Dzięki