Open Middle®
Directions: Using the digits 0-9 at most once each, fill in the boxes to find three points on the same line and the slope.
Hint
1. Consider making a table of values to help organize your thinking.
2. Remember we can view slope as a constant rate of change.
2. Remember we can view slope as a constant rate of change.
Answer
(0,3)
(4,5)
(8,7)
m = ½
(4,5)
(8,7)
m = ½
(0,5)
(4,7)
(8,9)
m =½
(3,0)
(5,4)
(7,8)
m = 2/1
(5,0)
(7,4)
(9,8)
m = 2/1
Source: Maggie Lee McHugh
