Answer:
see explanation
Step-by-step explanation:
(a)
The vertex is the turning point on the graph , U
coordinates of vertex = (1, - 9 )
(b)
The axis of symmetry is a vertical line passing through the vertex with equation
x = c ( c is the x- coordinate of the vertex ) , then
equation of axis of symmetry is x = 1
(c)
The zeros/ x- intercepts are the points on the x- axis where the graph crosses it.
The zeros are x = - 2 and x = 4
(d)
The y- intercept is the point on the y- axis where the graph crosses it.
The y- intercept = - 8U
(e)
This graph has a minimum at the vertex.
The minimum value is the y- coordinate of the vertex
minimum value = - 9
(f)
The graph is decreasing , going down, to the left of the vertex and increasing , going up, to the right of the vertex.
Then the graph is opening up
U ← opening up
∩ ← opening down
