Answer:
vertex =(1,-4)
Explanation:
Given is a graph of a parabola
We have to find its vertex
From the graph we observe that the parabola is symmetric about a vertical line x=1.
The graph decreases upto x=-1 and then starts increasing from x=-1
x intercepts are -1 and 3
y intercept is -3
Minimum point = (1,-4)
Since the parabola is open up, the minimum is reached at the vertex.
Hence vertex =(1,-4)