Question

What is the x-coordinate of the vertex of this parabola? y=-3x^2+12x-5

Answer 1

\(-\frac{b}{2a}\)

Answer 2

in your case \(a=-3,b=12\)

Answer 3

A.)2
B.)-3
C.)12

Answer 4

so which one

Answer 5

which one is \(-\frac{b}{2a}=-\frac{12}{2\times (-3)}\) ?

Answer 6

is A,B,or C