Question

The graph of a quadratic function with vertex (0, -1) is shown in the figure below.Find the range and the domain in interval notation please include paranthese or brackets within your answer.

Answer 1

The domain is all the values that the function can take on the x axis, in this case it would be all the real numbers:

`domain\to(-\infty,\infty)`

The range is all the values that the function can take on the y-axis. For this function it will grow from vertex to infinity:

`range\to\lbrack-1,\infty)`

Remember that when intervals are written, parentheses are used for open values and square brackets for exact values.