454=450
289=290
2,964=2,960
4 or less then let it rest 5 or more then let it soar is a helpful ryhme for rounding.
Answer:
When finding the value of x let y be 0 and when finding value of y let x be 0 and get your answers.
the answer would be y =1 ,
substituting x with 0 would make the 5/4 disappear and leave you with 1, making it Y=1