f(x) = x^2 - 2
This is the parent graph y = x^2 just shifted down 2 units
So....A
(x) = - ( x - 2)^2
This is the parent graph "flipped" over the x axis and shited to the right by 2 units
So...C
f(x) = x^2 - 2x
This turns upward.......it's easier to see if we write it this way
f(x) = x ( x - 2)
This has "zeros" at x = 0 and x = 2
So....it turns upward and crosses the x axis at x = 0 and x = 2
So...B
f(x) = -x^2 + 2x
If we write this as f(x) = - (x^2 - 2x).....it's the same graph as B "flipped over" the x axis
So.....D
Hope that helps !!!
