Answer:
Step-by-step explanation:
Given the equation of parabola
we have to find the x-coordinate of the vertex of the parabola.
The general form of equation of parabola is
The x-coordinate of the vertex of the parabola can be calculated as
Comparing the given equation with the general equation, we get
a=3, b=9, c=0
x-coordinate of the vertex of the parabola is
The x-coordinate of vertex of parabola is -1.5