II. Find the standard form of the equation of the ellipse with the given characteristic(s). 5. Vertices: (2, 0), (10, 0); minor axis of length 4

6. Foci: (0,0), (4,0); major axis of length 6

7. Center: (1,3); vertex: (-2,3); minor axis of length 4

8. Center: (1,4); a = 2c; vertices: (1,0), (1,8)

9. Vertices: (0, 2), (4, 2); endpoints of the minor axis: (2,3), (2, 1)

PLEASE HELP!

Consider a graph for the equation y= -3x+4. what is the y intercept? a) 4 b) -4 c) 3 d) -3

Simplify the expression. -2/5(10+15m-20n)

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.