PLEASE help!! Medal & Fan!

f y = 9x - 7, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

{(0, - 7) , (1, 2) , (-1, -16)}
{(-7, 0), (2, 1), (-16, -1)}
{(1, 9), (2, 7), (3, 16)}
{(7, 9), (8, 10), (9, 11)}

Question

PLEASE help!! Medal & Fan!




f y = 9x - 7, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?





 {(0, - 7) , (1, 2) , (-1, -16)}
 {(-7, 0), (2, 1), (-16, -1)}
 {(1, 9), (2, 7), (3, 16)}
 {(7, 9), (8, 10), (9, 11)}

anonymous · Answer

it would be the first one because 
-7= 9*0 - 7
is 0
2 = 9*1 -7
IS 9
-16 = 9*-1 -7
is -9