Answer:
5
i think this is the answer, since you said x = 1 and x = 3
Step-by-step explanation:
so we substitute them
also the mean means average, to find the mean add all the numbers then divide by how many. anyways...
y = 1^2
y = 1
y = 3^2
y = 9
we now write them:
(1 + 9) / 2
10 / 2
5
