Răspuns:
[tex]f = 0 \: \: \: \: 2x + 5 = 0 \: \: \: x = - \frac{5}{2} [/tex]
[tex]x = 0 \: \: \: y = 5 \: \: ( - \frac{5}{2} ..5)[/tex]
[tex]g = 0 \: \: \: x + 6 = 0 \: \: \: \: x = - 6[/tex]
[tex]x = 0 \: \: \: y = 6 \: \: \: ( - 6...6)[/tex]
[tex]x = 0 \: \: \: y = 5 \: \: [/tex]