Write an equation that describes the function

Question

-2   6

4    18

5    27

7    51

Answer 1

(-2)² + 2 = 6

4² + 2 = 18

5² + 2 = 27

7² + 2 = 51

 

Can you construct the quadratic function?

Answer 2

If you plot the points, or sketch a smooth graph throughtihe points, that graph may give you an idea of what kind of regression (curve fitting) choice to request on a graphing calculator.