Which of the following relations is a function? I.
{(0, 0), (0, 1), (0, 2)}
II.
{(0, 0), (1, 1), (2,4)}
III.
{(0, 0), (1, 2), (2, 2)}
IV.
{(0, 0), (1, 2), (1,3)}
O (A) I, II, and Ill only
O (B) I and II only
O (C) I and III only
O (D) III and IV only
Someone I need it asa

is II and III an option those are the ones that would be correct.

Step-by-step explanation:

You can only have one of each domain. For example you cannot have (0,0) and (0,1) since that won’t pass the vertical line test, you can have (0,0) and (4,0) as long as the domains are different, they can still have the same ranges.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15