For walking 13 hours you earn 58.50 and 121.50 for 27 hours. what is your rate of pay in dollars per hour

The answer should be $4.50 per hour. Correct me if I'm wrong

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.

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol