Ohio Resource Center
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Content Supports
Quadratic Functions
Discipline
Mathematics
Grades
9, 10, 11
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Professional Commentary

Students use quadratic functions to describe the relationship of the height of a football thrown in a parabolic path to its distance from the goal line. Working with graphing calculators, students collect and organize data, make a scatterplot, fit a curve to the appropriate parent function, and interpret the results. Discussion questions, an activity sheet, an extension of the problem, and suggestions for assessment are included. (author/sw)


Ohio Mathematics Academic Content Standards (2001)
Patterns, Functions and Algebra Standard
Benchmarks (8–10)
D.
Use algebraic representations, such as tables, graphs, expressions, functions and inequalities, to model and solve problem situations.
Grade Level Indicators (Grade 9)
3.
Describe problem situations (linear, quadratic and exponential) by using tabular, graphical and symbolic representations.
Grade Level Indicators (Grade 10)
10.
Solve real-world problems that can be modeled using linear, quadratic, exponential or square root functions.
Grade Level Indicators (Grade 11)
4.
Identify the maximum and minimum points of polynomial, rational and trigonometric functions graphically and with technology.
Principles and Standards for School Mathematics
Algebra Standard
Use mathematical models to represent and understand quantitative relationships
Expectations (9–12)
use symbolic expressions, including iterative and recursive forms, to represent relationships arising from various contexts;
draw reasonable conclusions about a situation being modeled.