© RNDr. Gabriela Kövesiová, 2011
Kvadratické funkcie
Súradnice vrchola paraboly
Ku predpisu kvadratickej funkcie priraďte súradnice jeho vrchola V[v
1
; v
2
].
Pozn. najprv predpis upravte na tvar, t.j. f: y = (x−v
1
)
2
+v
2
.
Over správnosť
f: y = x
2
− 2x + 3
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
f: y = x
2
+ 4x + 5
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
f: y = x
2
− 2x − 2
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
f: y = x
2
+ 2
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
f: y = x
2
− 4x + 4
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
f: y = x
2
+ 6x + 8
V [-3; -1]
V [-1; -3]
V [2; 1]
V [-2; 0]
V [1; 2]
V [3; -1]
V [-1; 2]
V [0; 2]
V [1; -3]
V [-2; 1]
V [2; 0]
Over správnosť
OK