M- 2 b- 3 ... 2x+3 negative slope not sure if proportional or not
The graph represents a function but the table does not. The reason for this is that one input value (70) in the table is associated with two output values (54.6 and 53.11), which is a sure sign that we do NOT have a function here.
Answer:
the first picture shows the curve of a axis of symmetry