Question

The length of the major axis of the ellipse below is 12, and the length of the red line segment is 4. How long is the blue line segment?​

Answer 1

8

Explanation:

Answer 2

The answer to your question is letter B. 8

Explanation:

Data

Major axis length = 12 = 2a

red line = 4

blue line = ?

Process

In an ellipse, the distance from the focus to a point is equal to the major axis.

2a = PF + PF'

Substitution

12 = PF + 4

Solve for PF

PF = 12 - 4

Simplification and result

PF = 8