hey guys could you please help me? i NEED the equation and the asnwer, please help and ill give you extra points! thanks!!

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Explain how the quotient of powers was used to simplify this expression.