Posted by Mario on Monday, April 18, 2011 at 1:40am.
3(Y-3) = (X+6)^2,
3Y-9 = X^2+12X+36,
3Y = X^2+12X+36+9,
3Y = X^2+12X+45,
Y = X^2/3+4X+15,
h = -b/2a = -4/(2/3) = -12/2 = -6.
k=Yv = (-6)^2/3+4*(-6)+15 = 12-24+15 = 3.
V(h,k)= V(-6,3).
F(-6,Y2)
V(-6,3)
D(-6,Y1)
3-Y1 = 1/4a = 1/(4/3) = 3/4,
-Y1 = 3/4 -12/4 = -9/4,
Y1 = 9/4.
Y2-3 = 1/4a = 1/(4/3) = 3/4,
Y2 = 3/4+12/4 = 15/4.