1,345,456,234,234,345,234,-1234,567 ,890=? My subsititue is being mean so we can not use calculatars and I do not like to cheat anyway but in this case (yes)

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

Which of the following is true for the relation f(x)=2x^2+1

Math i have no idea how to do a and b