Understanding Ellipses

What is the point of intersection of the major and minor axes of an ellipse called?

• Origin

• Center

• Focus

• Vertex

In the equation of an ellipse with a vertical major axis, where is the larger denominator located?

• Under the x-part

• Under the y-part

• Under both parts

• It doesn't matter

If the length of the major axis is 10 units, what is the value of a?

• 3

• 4

• 5

• 6

What is the length of the minor axis if b equals 3?

• 3 units

• 12 units

• 6 units

• 9 units

What is the standard form equation of an ellipse with a vertical major axis and center at (2, -3)?

• (x+2)^2/9 + (y-3)^2/25 = 1

• (x-2)^2/25 + (y+3)^2/9 = 1

• (x+2)^2/25 + (y-3)^2/9 = 1

• (x-2)^2/9 + (y+3)^2/25 = 1

In an ellipse with a horizontal major axis, where is the larger denominator located?

• It doesn't matter

• Under both parts

• Under the y-part

• Under the x-part

What is the center of an ellipse with a horizontal major axis and given as (-4, 5)?

• (5, -4)

• (-4, 5)

• (-5, 4)

• (4, -5)

If the length of the major axis is 12 units, what is the value of a?

• 7

• 6

• 5

• 4

What is the standard form equation of an ellipse with a horizontal major axis and center at (-4, 5)?

• (x-4)^2/36 + (y+5)^2/9 = 1

• (x+4)^2/36 + (y-5)^2/9 = 1

• (x+4)^2/9 + (y-5)^2/36 = 1

• (x-4)^2/9 + (y+5)^2/36 = 1

What is the length of the minor axis if b equals 3 in an ellipse with a horizontal major axis?

• 3 units

• 6 units

• 9 units

• 12 units