U3L3 A2CT

U3L3

Ellipses

Multiple Choice

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4
• 2
• 3
• 16

Multiple Choice

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

Multiple Choice

What is the vertex of this quadratic equation?

y = 2(x + 2)² + 5

• (-2,5)

• (2,5)

• (5,-2)

• (-5,-2)

Fill in the Blank

What is the center of an ellipse with the equation:

 $\frac{\left(x+2\right)^2}{16}+\frac{\left(y-3\right)^2}{4}=1$  ?
**Do not use spaces in your answer**

Multiple Choice

What are the values of a and b for an ellipse with the equation:

 $\frac{\left(x+2\right)^2}{16}+\frac{\left(y-3\right)^2}{4}=1$  ?

• a=4, b=2

• a=2, b=4

• a=8, b=2

• a=16, b=4

Homework

U3L3 HW #2,6,10