input 1 2 3 4 5 6 7
output5 9 13 17
judging from what I see, we have the output increasing by 4 when the input increases by 1.
so, look for something like
y = 4x
Since 5=4+1, I'd try
y = 4x+1
That seems to work.
output5 9 13 17
so, look for something like
y = 4x
Since 5=4+1, I'd try
y = 4x+1
That seems to work.