can anyone help me with this ill give medals and fan

If y = 5x − 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
{(0, −4), (2, 6), (4, 20)} {(0, −4), (2, 6), (4, 16)} {(0, 4), (2, 6), (4, 16)} {(0, 4), (2, −6), (4, 20)}

Question

can anyone help me with this ill give medals and fan

If y = 5x − 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
{(0, −4), (2, 6), (4, 20)} {(0, −4), (2, 6), (4, 16)} {(0, 4), (2, 6), (4, 16)} {(0, 4), (2, −6), (4, 20)}

anonymous · Answer

you have to check them all i guess
kind of annoying
for example $(0,-4)$ works because 
$$y=5\times 0-4=-4$$ so if $x=0$ then $y=-4$

anonymous · Answer

oh that means you don't have to check them all, since it looks like you have two distinct choices
go with the first one

swamijatin2 · Answer

2nd set is correct by putting the vaue of x=0,1,4

anonymous · Answer

so you say its the second one?

anonymous · Answer

no

swamijatin2 · Answer

yes u can check

anonymous · Answer

@satellite73 work matched up with his response

anonymous · Answer

oh maybe i am confused
is it 4 sets?

anonymous · Answer

then yeah, the second one

swamijatin2 · Answer

yes the right answer is second

anonymous · Answer

thank you guys so much who gets the medal?

swamijatin2 · Answer

i get the medal