Part A: Nicole is scuba diving off the coast of Florida. She is currently at a depth of 125 meters below sea level and needs to begin ascending. Nicole
begins to ascend slowly at 6.5 meters per minute to avoid decompression
sickness.

1. What is the initial value and what does it represent in the context of this problem?

2. What is the rate of change and what does it represent in this context of this problem?

Step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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