The answers below me were all right.
Answer:
Step-by-step explanation:
a=11, b=53
y=ax+b
x=1, y=64 -> 64=a+b
x=2, y=75 -> 75=2a+b
75-64=a, a=11, b=53
All the other points obey this rule.
the least common denominator is 54 although there are some that are higher ones
