2. Which of these relations is NOT a function? А
R= {(0, 0), (2,6), (-4, -12), (-5, -15)}
B. R={{-2, 2), (2,-2).(-4,4),(4; -4)}
C. R = {(4, 5), (4,8), (5, 10), (6, 12)}
D. R = {(2, 3), (4,3), (6,3), (5,3)}

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

what "following statement"?

step-by-step explanation:

ummm seems that u didnt post the attachement !