Find the vertex of the parabola whose equation is y = x^2 + 8x + 12.

The vertex of the parabola is (-4,-4).

Step-by-step explanation:

If a quadratic function is defined as

             ... (1)

Then the vertex of the function is

The given function is

            .... (2)

From (1) and (2), we get a=1,b=8 and c=12.

Substitute x=-4 in the given equation.

Therefore the vertex of the parabola is (-4,-4).

the answer is a

step-by-step explanation:

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40