Between 1975 and 1986, doctors in the state were required to report all cases in which a patient tested positive for a particularly deadly strain of the flu to the department of health.
Years
Number
since 1975 of patients
0
44,594
2 41,356
4
41,267
7
40,833
10
41,289
11 43,171
A] Use quadratic regression to create a parabola of best fit to model the data. Write the equation for the model, rounding
coefficients to two decimal places.

Bust a goofy dog.

Step-by-step explanation:

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.