Which equation best represents the relationship between x and y in the table below?
x 1 2 3 4 5
y 6 9 14 21 30
y
=
2
x
+
5

y = 2 x + 5

y
=
3
x
+
3

y = 3 x + 3

y
=
x
2
+
5

y = x 2 + 5

y
=
2
x
2

4