Which equation represents the linear relationship between x and y shown in the table

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

21 type the correct answer in each box. if necessary, round your answers to the nearest hundredth the vertices of abc are a(2,8), b(16, 2), and c(6,2). the perimeter of abc is units, and its area is square units

Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )