Okay, remember that the x-coordinate of a parabola is given by x = -b/2a. After we find x, we are going to substitute it into the equation and solve for the y-coordinate. Let's do it:
x=-(-2k)/2(1)=2k/2=1k=k
Replacing x=1 in the equation:
y=(k)²-2k(k)+6=k²-2k²+6=-k²+6
Finally we obtain the following ordered pair: (k, -k²+6)
