Question

The graph of a quadratic function with vertex (3.2) is shown in the figure below.Find the range and the domain using interval notation. For your answer make sure the proper parentheses/ brackets are used.

Answer 1

Given the graph of a quadratic function.

The vertex is the point ( 3, 2 )

Domain: is the values of x that will be valid for the function.

As shown, Domain is all the real numbers.

Domain as interval notation = (-∞, ∞ )

The range is all the possible values for the output (y)

As shown, Range = ( -∞, 2 ]