Parabola Review

Check the box that shows a parabola.

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There are figures that formed by intersecting two inverted cones and a plane.

• Cross Sections

• Circles

• Conic Sections

• Parabolas

Conics are special curves and are classified into four types. EXCEPT?

• Ellipse

• Parabola

• Circle

• Cone

• Hyperbola

• Circle

• Parabola

• Ellipse

• Hyperbola

The directrix is a line on the outside of the parabola.

• True

• False

What is the standard equation of the parabola with vertex  $\left(11,7\right)\ and\ directrix\ \ y\ =4?$  

•  $\left(x-11\right)^2=12\left(y-7\right)$  

•  $\left(y-11\right)^2=12\left(x-7\right)$  

•  $\left(x-7\right)^2=12\left(y-11\right)$  

•  $\left(y-7\right)^2=12\left(x-11\right)$  

What is the standard equation of the parabola with vertex
 

 $\left(2,-4\right)\ and\ focus\ \left(-1,-4\right)?$  

•  $\left(y+4\right)^2=-12\left(x-2\right)$  

•  $\left(y+4\right)^2=12\left(x-2\right)$  

•  $\left(x-2\right)^2=12\left(y+4\right)$  

•  $\left(x-2\right)^2=-12\left(y+4\right)$  

What is the standard equation of the parabola with vertex  $focus\left(11,7\right)\ and\ directrix\ x=1?$  
 

•  $\left(y-7\right)^2=20\left(x-6\right)$  

•  $\left(y-7\right)^2=-20\left(x-6\right)$  

•  $\left(x-6\right)^2=20\left(y-11\right)$  

•  $\left(x-6\right)^2=-20\left(y-11\right)$  

Based on the graph, what is the standard equation of the parabola?

• $\left(y+4\right)^2=12\left(x-2\right)$

• $\left(y+4\right)^2=-12\left(x-2\right)$

• $\left(x-2\right)^2=12\left(y+4\right)$

• $\left(x-2\right)^2=-12\left(y+4\right)$

True or False?
When the y-part is squared, the parabola opens up or down.

• True
• False