8. Use the exponential regression feature of the desmos graphing calculator to create an exponential equation for the following data. Round the 'a' value to the NEAREST WHOLE NUMBER and the 'b' value to THREE DECIMAL PLACES. Enter your equation like one of these examples: y=5(1.789)^x; y=342(0.571)^x DO NOT USE THE COMMA WHEN ENTERING 10000.00 INTO DESMOS.

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.

step-by-step explanation:

for the free