Y= a(x-2)(x+4) the graph of the equation in the xy- plane is a parabola with vertex (c, d) which of the following is equal to d? a) -9ab) -8a c) -5ad)-2acan you tell me how to solve it.

A

Step-by-step explanation:

First set y=0, then solve resulting in y=2,-4, plug those values into the midpoint formula. then you get x=-1, then plug -1 in for x in the equation. so it becomes y=a(-1-2)(-1+4). Solve that and you get y=a(-3)(3), multiply that together and you get -9a

idkit the do u know da way and ligma consumed ninja

step-by-step explanation:

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33