Hello! In order to find a linear function without graphing it, we can see if the x-values (domain) has more than one value of y (range) out of this set of ordered pairs. Those ordered pairs represent a linear function, because each x-value does not have more than 1 y-value. Therefore, those points satisfies a function.
-9, -3 is the answer to your problem.
4w -1
Because 7w + -3w = 4w and then -6 + 5 = -1
