The function is a quadratic function
Explanations:From the table:
The values of x = 1, 2, 3, 4
The corresponding values of y = 6, 9, 14, 21
When x = 1, y = 6
When x = 2, y = 9
when x = 3, y = 14
when x = 4, y = 21
The function representing the relationship between x and y is:
y = x² + 5
This is a quadratic function