Which of the following relations are NOT functions? Select all that apply.*
(1,3), (3,7), (5,11), (7,15), (9,19)
(1,3), (1,7), (5,11), (5,15), (9,19)
(-2,4), (-1,1),(0,0), (1,1), (2,4)
(2,4), (1,1),(0,0), (1,-1), (2,-4)
(6,3), (4,1), (2,1),(0,-1), (-2,-3)
(1,3), (3,11), (3,7), (7,15), (9,19)
O (1,3), (3,7), (5,11), (9,15), (9,19)

Going from 1 to 7. The not functions are 2,4,6, and 7

Step-by-step explanation:

How you can determine if its a function is if all x values are different. Vertical line test.

the first question mark is 6 and the second question mark is 26 (the square root)

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)