Mark as

does the table below represent a function?

answer:

yes, it does

there are 2 values, x and for it to be a function, the x values has to be different while the y value can remain the same number. what i'm trying to say is that x value shares only 1 y value! the x value is always the first number.

example:

these function: (1,,,9)

these don't function: (1,,,1)

see how the 1 in the second row are the same, it is not a function.

so, your graph is a function!

answer: sine

step-by-step explanation:

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.