Can someone Help find the 3 answers for the table chart

Find the ratio by subtracting x1 from x0, then x3 from x2:
7/4 - 3/4 = 4/4
3/4 - (-1/4) = 4/4
For each 1 on X, the Y value decreases by 4/4
so X3 = X2 - 4/4: -1/4 - 4/4 = -5/4
X4 = x3 - 4/4 = -5/4 - 4/4 = -9/4
x5 = x4 -4/4 = -9/4 - 4/4 = -13/4