ANSWER
The parabola opens downward
The vertex of the coordinate is (-2, 0)
The equation of axis symmetry is x = -b/2a (x = -2)
The y-intercept is -3
EXPLANATION
Firstly, we need to determine if the curve of the parabola is open downward or upward.
From the given graph, you will see that the curve is open downward. That is the curve of the parabola is facing
down. Hence, the parabola is open downward
Part B
Find the coordinate of the vertex
The coordinate of the vertex is the midpoint of the parabola, and it is (-2, 0)
Part C
Find the equation of the axis of symmetry
The axis of symmetry of a parabola is the vertical line that divides the parabola into two congruent halves. From the given graph, we can see that the point at which the parabola is divided into two equal halves is at
[tex]x\text{ = - }\frac{b}{2a}[/tex]
x = -2
Part D
The graph of the parabola does not have an x-intercept but the y-intercept is -3
