At a restaurant, diners eam 1 point for every $2 they spend, plus 25 bonus points on their first meal. Function f represents the number of polnts
earned as a function of the total amount spent x. Which function represents the total amount spent as a function of the number of points
earned?

Step-by-step explanation:

We know it can't be the first two because they don't get 2 points for every $1 spent, so it has to be f(x) = 0.5x + something. That something has to be 25 because they get 25 bonus points on their first meal, so the answer has to be f(x) = 0.5x + 25. Hope this helps!

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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step-by-step explanation: