Vastaus: kärki #(2,-2)# symmetria-akseli # X = 2 # Selitys: Annettu - # Y = x ^ 2-4x + 2 # kärki #X = (- b) / (2a) = (- (- 4)) / (2xx1) = 4/2 = 2 # at # X = 2; y = 2 ^ 2-4 (2) + 2 # # Y = 4-8 + 2 = -2 # kärki #(2,-2)# symmetria-akseli # X = 2 #