What are the coordinates of the vertex of the graph of the function y = –x² + 6x –11?

(3, –2)
(3, 16)
(–3, –29)
(–3, –20)

A.

Step-by-step explanation:

We have been given a function formula . We are asked to find the coordinates of the vertex of the graph.

We know that the x-coordinate of an equation in form can be determined using formula .

We can see that value of b is 6 and value of a is -1.

Now, we will substitute in given formula to find y-coordinate.

Therefore, the coordinates of vertex of the given function are .

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: