Students will work in pairs/partners to identify the slope, type of slope (P=positive, N=negative, 0=zero, U=undefined), the y-intercept, write an equation, evaluate the function at a given x and determine whether the function is proportional.
Each Partner will find the slope for their table, etc... They will then compare their answers. If they do it correctly they will have the same information. The only difference will be the values of y for their given x value. If the other answers are different they should justify their answers until one of them realizes their mistake.
This allows the students the opportunity for practice and satisfies their need for instant feedback. I hope your students enjoy this activity.
determining if proportional
Identifying types of slope