Question 1041170
<a href="https://www.youtube.com/watch?v=Wworlx39KfQ">Derive parabola equation, given focus and directrix</a>


<a href="https://www.youtube.com/watch?v=M8LGsQMwwj4">Derive parabola equation if vertex at Origin</a>


<a href="https://www.youtube.com/watch?v=MD4AiN1Gsmc">Change quadratic equation into standard form from general form</a>