Can someone explain to me how to find the vertex form of this equation? y= -x^2 + 12x-4

ANSWER:  

The vertex of given equation   is (6, 32).

SOLUTION:

Given, quadratic equation is  

Above equation is a parabola and we need to find the vertex of that parabola.  We know that, general form of the parabola is  

Where, (h, k) is the vertex.

So, let us convert the given equation in parabolic equation.

Now, by comparing above equation with general form,  

h = 6, k = 32 and a = -1.

Hence, the vertex of given equation is (6, 32).

ok

step-by-step explanation:

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour