Answer: x=4.5
Step-by-step explanation:
The question is in standard form as y = ax^2 + bx + c.
And as such, the axis of symmetry is given as x = - b / 2a
From the question above, a =1 and b = - 9
Therefore axis of symmetry is;
x = - (-9) / 2(1) which gives;
x = 9/2 or x=4.5
