The variable y is dependent on the variable z. The following table represents points on the function f(x) which represents the two variables. y
-4
-8
I!
-4
-2
0
0
4
2
4.
8
Which of the following equations represents the function f(x)?
O f(x) = -22
O f(x) = < <
Ofr) = 2

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

the square root of what number? if you add that, then someone will probably answer the question.

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.