Type:

Unit

Description:

ParabolasWhen working with parabolas in the past you probably used vertex form and analyzed the graph by finding its roots and intercepts.  There is another way of defining a parabola that turns out to be more useful in the real world.  One of the many uses of parabolic shapes in the real world is satellite dishes.  In these shapes it is vital to know where the receptor point should be placed so that it can absorb all the signals being reflected from the dish. Lessons, videos, exercises, and text from CK-12. Additional resources available at this site.

Subjects:

  • Mathematics > General
  • Mathematics > Geometry

Education Levels:

  • Grade 9
  • Grade 10

Keywords:

parabola directrix focus

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial

Collections:

Teacher Resources
Update Standards?

CCSS.Math.Practice.MP2: Common Core State Standards for Mathematics

Reason abstractly and quantitatively.

CCSS.Math.Practice.MP5: Common Core State Standards for Mathematics

Use appropriate tools strategically.

CCSS.Math.Practice.MP6: Common Core State Standards for Mathematics

Attend to precision.

CCSS.Math.Practice.MP7: Common Core State Standards for Mathematics

Look for and make use of structure.

CCSS.Math.Content.HSG-GPE.A.2: Common Core State Standards for Mathematics

Derive the equation of a parabola given a focus and directrix.
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'C' - Curriki rating
C
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