if given schedule is equivalent to anyone of the serial schedule then given schedule is View Serial. for this we are checking 3 conditions as :
1. Initial read : No intital read in any Transaction. so T2 -----> T1 not possible.
2. Final Write : Final write should be done by T1. No write operation is T2 so it is allowed to execute eother T1----->T2 or T2 -----> T1 bit T2 ----->T1 not possible as condition of Initial Read. now only option left is T1 ----->T1
3. Write Read sequence : if T1 --->T2 then T2 reads value of x after second update done by T1. so T1 -----> T2 also not possible.
finally not View Serial.