Question

Chap 5

Answer 1

@kirbykirby

Answer 2

hi

Answer 3

Hi
OS LAGGED..

Answer 4

http://prntscr.com/4nfluc

Answer 5

I'm not sure I understand your question :S , \(-a_0=0s\) ?

Answer 6

Yes..

Answer 7

or maybe you can explain to me that sentence means...

Answer 8

It is saying that the distance from the focus to a point on the parabola (say this point is P) is always equal to the distance of P to the directrix (and that line is perpendicular to the directrix). So for example: The distance FP is the same as the distance PD in any situation... that is for any distance from the parabola to the focus, that length is the same as the length from the parabola to the directrix (when that line is perpendicular to the directrix)