HELP! Please ALGEBRA SUCKS! Which function has a minimum at -2 and a line of symmetry at x = 3?

A) y = -2x^2 - 12x - 20
B) y = -2x^2 + 12x - 20
C) y = 2x^2 + 12x + 16
D) y = 2x^2 - 12x + 16

Oh and all absurd answer will be reported( •_•), really important test. Best BRAINLEST!

Thanks! (\• v •/)

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.