Answer:
C.
Explanation:
substitute each value in terms of y
formula -> y=mx+c
in which
c = difference of y and x/ y-x
x = x value
y = y value
m = least common multiple of value x
(sorry if I'm wrong I haven't solved this type of question in a very long time)
c = 5
x = 1 (this value is hidden for the sake of finding a workable formula for the whole table)
y = 7 (this value is hidden for the sake of finding a workable formula for the whole table)
m = 2
y = 2x + 5