Institutions have accepted or given pre-approval for credit transfer.
* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.
The Focus and Directrix of a Parabola
In this lesson, I'll show you how to take the equation of a parabola in standard form and figure out where its directrix and focus are, and vice versa!