Conic Sections

Question 1

Which conic section is formed when a plane intersects the central axis of a double-napped cone at a 90° angle?

Revolt · Accepted Answer

circle

Question 2

Complete the statements to describe the graph that represents the equation (y – 8) = –2(x – 2)2.

Revolt · Accepted Answer

The vertex is .: (2, 8); The directrix is y = .: 8.125; The focus is .: (2, 7.875); The focal width is .: 0.5

Question 3

–7.875–8.1257.875✔ 8.125

Revolt · Accepted Answer

8.125

Question 4

(2, –8.125)(2, –7.875)✔ (2, 7.875)(2, 8.125)

Revolt · Accepted Answer

(2, 7.875)

Question 5

0.125✔ 0.528

Revolt · Accepted Answer

0.5

Conic Sections Answers