Question

explanation with answer pls thx

What is the domain of the function: {(1, 2); (2, 4); (3, 6); (4, 8)}?


A.
{6, 8}


B.
{2, 4, 6, 8}


C.
{1, 2, 3, 4, 6, 8}


D.
{1, 2, 3, 4}



What is the range of the function: {(2, 1); (4, 2); (6, 3); (8, 4)}?


A.


{2, 4, 6, 8}


B.


{1, 2, 3, 4}


C.


{1, 2, 3, 4, 6, 8}


D.


{6, 8}


Suppose p varies directly with d, and p = 7 when d = 3. What is the value of d when p = 28?



A.4/3




B.140/3




C.
16


D.
12

Answer 1

so domain is x and range is y

Answer 2

so for number 1 what are the x values?

Answer 3

the domain of a function is the set of x values, the input. As above, what are the x values?

Answer 4

yo no cool just to steal it @triciaal