Finding Slope from a Table

What operation do I use to find the change between two numbers?

• Add them together

• Subtract them from each other

• Multiply them together

• Divide them

How will I find the change from -2 to -7?

• -2-(-7)

• -7-(-2)

• -7-2

• -2-7

-7 - (-2) = ?

• -5
• 5

• 14

• 0

Which graph matches a slope of -2/5?

• 
• 
• 

Which line might match the slope in the table?

• 
• 

Categorize each slope as either 0 or undefined.

Groups:

(a) Zero

,

(b) Undefined

What is your final slope? (remember to simplify if you can)

(a)  

m represents (a)  

We would start at the ____ dot because it's on the _____.

• green, left

• blue, right

• green, right

• blue, left

Why do you think the x1 has to be the lower x value?

• Because that dot would be farther left than the higher x value.

• Because that dot would be farther right than the higher x value.

• Because we read a graph from right to left.

• Because left is better than right.