Answer:
IV graph
Step-by-step explanation:
Given is a picture consisting of 4 parabolas with first 3 open up and last one open down.
We are to find the minimum value vertex
Seeing the graph we can write coordinates of vertex as where they turn their direction.
Hence vertices are
Graph Vertices y value
I (0,5) 5
II (0,0) 0
III (1,2.5) 2.5
IV (0,-4) -4
Of the 4 y values, IV graph has the minimum value vertex
