The set of ordered pairs (–1, 8), (0, 3), (1, –2), and (2, –7) represent a function. what is the range of the function? {x: x = –1, 0, 1, 2} {y: y = –7, –2, 3, 8} {x: x = –7, –2, –1, 0, 1, 2, 3, 8} {y: y = –7, –2, –1, 0, 1, 2, 3, 8}

{y: y= -7, -2, 3, 8} is the range of the function. 

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm