Question

4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed on the focus of the parabola. If the parabola is 24 inches wide and 9 inches deep, how far from the vertex should the microphone be placed? (1 point)

Answer 1

@thomaster can you help me?

Answer 2

So first, draw a picture on a coordinate plane

Answer 3

sorry i forgot to put the answer choices here they are:
6 inches
8 inches
16 inches
4 inches
also i was just wondering how to do this using the formulas not by drawing a picture.

Answer 4

You should always draw a picture

Answer 5

It's good for reference

Answer 6

ok

Answer 7

This is for a test isn't it...

Answer 8

no its for a review

Answer 9

ok, I just saw a test with this as question 4

Answer 10

alright so now we have a picture, we know the width and the depth. What is your idea?

Answer 11

i dont have a picture of this :(

Answer 12

You were supposed to draw one

Answer 13

oh sorry i didnt

Answer 14

ok so draw one please

Answer 15

Oh never mind i have the answer it was right in front of me >.<

Answer 16

ohk have a good one

Answer 17

thanks