Question

Domain and range from the graph of a quadratic function

Answer 1

Given the graph of the quadratic function with vertex (-4,-3) as shown below:

The domain of the function is a set of input values. The range of a quadratic function continues in either direction along the x-axis, as shown by the arrows in the above plot. The range is the set of output values. In other words, it is the possible values of y in a quadratic function.

Thus, the domain of the function is:

`(-\infty,\text{ }\infty)`

The range of the function is :

`\lbrack-3,\text{ }\infty)`