Each table shows a proportional relationship between x and y. Match each table with its constant of proportionality. x y

1 20

2 40

3 60

x y

2 80

8 320

12 480

x y

2 0.4

4 0.8

9 1.8

x y

7.5 4.5

10 6

17.5 10.5

0.6

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0.2

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20

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40

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Pls help:( HELP

22

step-by-step explanation:

your answer is the frist one

hop i

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.

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^