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?

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

she will travel a distance in the range of 3 - 11 miles