The Finding and interpreting key feature of quadratics exercise appears under the Algebra I Math Mission and Mathematics II Math Mission. This exercise uses zeros and vertices to solve word problems involving quadratics.
Types of Problems[]
There is one type of problem in this exercise:
- Apply the key features of a parabola to the word problem: This problem has a context problem that is modeled with a quadratic equation or function. The user is asked to solve some problems based on the model.
Strategies[]
Knowledge of the quadratic formula can help lead to all elements of this exercise, although vertex form can also be used for some parts.
- The zeroes can be found by the quadratic formula, which is .
- The vertex is located at .
Real-life Applications[]
- The zeroes of a quadratic are used to find many physical interpretations, such as equilibrium prices in supply-demand applications and objects hitting the ground in physics.
- The vertex is a relative extremum in general, and absolute extremum in the case of a quadratic.
- The descriptions of problems in this exercise are also real-life applications.