Final answer:
From the given pairs of a linear function, it is determined that the y value increases by 1 for every increment of 1 in x, hence the missing y value for x=4 is 8.
Step-by-step explanation:
To determine the missing value in the table that represents a linear function, let's observe the pattern of the given x and y values. We have pairs (1, 5) and (2, 6), suggesting that for each increment of 1 in x, y increases by 1. If we apply the same pattern, starting from the second pair (2, 6):
- For x=3, y would be 7 (which is not given, but follows the pattern).
- Therefore, for x=4, y would be 8.