Answer :
areGiven data
*The given function is
[tex]f(x)=-x^2_{}+x-5[/tex]The coordinates of the vertex is (1/2, -19/4)
(b)
The coefficient of x^2 negative to open downward
(c)
The negative 5 axis tells about the parabola that intercepts the y-axis at (0, -5)