Ali graphs the function f(x) = -(x + 2)2 - 1 as shown.
Which best describes the error in the graph?
The axis of symmetry should be x = -1.
The axis of symmetry should be x = 2.
The vertex should be a maximum.
The vertex should be (-2, 1).

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103