![]() Determine if the parabola opens up or down: up, because \(a=2\) and 2 is positive. ![]() On the other hand, functions with restrictions such as fractions or square roots may have limited domains and ranges (e.g., \(f(x)=\frac=-1\) Play this kahoot about Algebra grade8 grade9 Determine the effects of transformations on the graph of the quadratic parent function f(x) x2. Some functions, such as linear functions (e.g., \(f(x)=2x 1\)), have domains and ranges of all real numbers because any number can be input and a unique output can always be produced. The structure of a function determines its domain and range. The range of a function is the set of all possible outputs. ![]() The domain of a function is the set of all possible inputs. All quadratic functions return a parabola as their graph. Hi, and welcome to this video about the domain and range of quadratic functions! In this video, we will explore how the structure of quadratic functions defines their domains and ranges and how to determine the domain and range of a quadratic function.īefore we begin, let’s quickly revisit the terms domain and range. Quadratic functions are functions with 2 as its highest degree. ![]()
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