Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. what was the change in the low outside temperature from tuesday to wednesday? this function table shows the outside temperature for a given day. monday, -12.5 (degrees celsius). tuesday, -8.6 (degrees celsius). wednesday, -10 (degrees celsius). –10⁰–1.4⁰18.6⁰–18.6⁰

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.

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