Answer
The given graph represents a quadratic function.
Work Step by Step
Join the data points in the graph and observe the graph as shown below
The best approximation of the given data set is a parabola.
The graphs of all quadratic functions are called parabolas. They are U shaped and open upward or downward. The turning point of the graph is called the vertex of the parabola.
Thus, the graph represents a quadratic function.
