The vertex of this parabola is at (5, -4). which of the following could be its equation.

B

Step-by-step explanation:

Since the y coordinate of the vertex is -4, it has to be the rest of the equation subtracted by 4, which eliminates A and C.

Adding 5 puts it on the left side, so you have to subtract 5.

Then you add all the default info and the info we found out.

y = 2(x-5)^2-4

So technically by process of elimination, B must be the answer.

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

9

step-by-step explanation: