tlong bntu jwab kk, yg tw pleasee..

P(1,0) ~ (x1,0)
Q(2,0) ~ (x2,0)
(0,6) ~ (x,y)

Y = a(x-x1) (x-x2)
6 = a (0-1) (0-2)
6 = 2a
3 = a

Y = a (x-x1) (x-x2)
Y = 3 ( x^2 -3x + 2)
Y = 3x^2 -9x + 6