Find the equation of a parabola with a focus at (3,1) and a directrix at y = 3. Question 2 options: A) y = –1∕4 (x – 3)2 + 3 B) y = –1∕4 (x – 3)2 + 2 C) y = 1∕4(x – 3)2 + 2 D) y = 1∕4(x – 3)2 + 3

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2