Question

Ajutaţi-ma va rog frumos imi trebuie azi urgent va voi fi recunoscator✋✋✋✋✌Va rog frumos imi trebuieşte urgenttttt va rog

Answer 1

[tex]\it 1) IV \\\;\\ 2) f(x) =-3x+1 [/tex]

[tex]\it a) f(-3) = -(-3)+1 = 3+1 = 4 \\\;\\ f(1) = -1+1=0 \\\;\\ b)\ \{-3,\ 1\} \\\;\\ c)\ \{0,\ 4\}[/tex]

[tex]\it 3) \ f(x) = 2x-7,\ 2\ \textgreater \ 0 \Longrightarrow f(x) \ este\ strict\ cresc\breve{a}toare \\\;\\ 4)\ f(x) =3x-1 \Rightarrow f(-1) =3\cdot(-1)-1 =-3-1=-4 \Rightarrow \\\;\\ \Rightarrow A(-1,\ -4) \in \ Gf \Rightarrow \ corect\ este \ \ b)\ (-1,\ -4)[/tex]

[tex]\it 5)\ f(x) =52-3x,\ x = num\breve{a}rul \ zilelor \\\;\\ x=7\ \Rightarrow \ f(7) = 52-3\cdot7=52-21=31\ lei\ (i-au\ r\breve{a}mas )[/tex]