If y = 6x – 3, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? (4 points) {(0, 3), (1, –9), (2, –15)} {(0, –3), (2, 15), (4, 21)} {(0, –3), (2, 9), (4, 21)} {(0, 3), (–2, 15), (4, 21)}

You have all coordinates (x , y) value, the 1st being x & the 2nd, y. You have just to plug x & y in the equation (y=6x-3) & if you find an equality this means that the input (x) yields the output (y).

Let's solve the 1st : (0,3)===>& let's plug x =0 & y= 3 in the equation y=6x-3

===> 3=(6) x (0) -3. It's not an equality & hence it doesn't satisfy the answer

Let's take the last pair (4,21) & let's plug it in y=6x-3
21 = (6) x (4) -3. so 21 = 21 & this satisfies etc