What are the solutions of the equation y = negative 2 x squared + 9 x minus 4 shown in the graph below? On a coordinate plane, a parabola opens down and goes through (0, negative 4), has a vertex around (2.5, 7), and goes through (4, 0).
a.
x = negative one-half, 4
c.
x = one-third, 4
b.
x = negative 4, 4
d.
x = one-half, 4

Please select the best answer from the choices provided

A
B
C
D