Question

The gra. a quadratic function with vertex (- 4, - 2) is shown in the figure below Find the domain and the range. Write your answers as inequalities, using x or y as appropriate. Or you may instead click on "Empty set" or "All reals^ prime prime as the answer.

Answer 1

The domain of a function are all the values of x for which the function exists. Since in this case, the function is a polynomial, the domain is all real numbers.

The range are all the values of y that the function takes. We can see that the lowest point of the graph is at y = -2 and from there it goes to positive infinty.

The range is:

`Range:-2\leqslant y`