hello, please assist

Homework: Section 3.3 Question 3, 3 Part 1 of 5 Watch the video and then solve the problem given below. Click here to watch the video For the function below, (a) find the vertex; (b) find the axis of symmetry; (c) determine whether there is a maximum or a minimum value and find that value, and (d) graph the function. f( x ) = - x2 -8x-17. . . . (a) The vertex is (Type an ordered pair, using integers or fractions.)