G8 Eureaka M4 L16 PS

Which line is steeper?

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• 

Which line is steeper

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• 

Which line is steeper?

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• 
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Is the slope positive or negative

• Positive

• Negative

Calculate the slope using rise/run.

• 5

• -5

• 1

• -1

Calculate the slope using rise/run

• 4

• 0

• undefined

• -4

Calculate the slope using rise/run

• 4

• 0

• undefined

• -4

Which fraction would you use to calculate the slope of a line that goes through (7,4) and (10, 19)

•  $\frac{19-4}{10-7}=\frac{15}{3}=5$  

•  $\frac{4-19}{10-7}=\frac{-15}{3}=-5$  

•  $\frac{10-19}{7-4}=\frac{-9}{3}=-3$  

Which fraction would you use to calculate the slope of a line that goes through (7,4) and (11,9)

•  $\frac{9-11}{4-7}=\frac{-2}{-3}=\frac{2}{3}$  

•  $\frac{9-4}{11-7}=\frac{5}{4}$  

•  $\frac{15-10}{8-2}=\frac{5}{6}$  

Which fraction would you use to calculate the slope of a line that goes through (8,14) and (21,14)

•  $\frac{21-8}{14-14}=\frac{13}{0}=undefined$  

•  $\frac{9-4}{11-7}=\frac{5}{4}$  

•  $\frac{14-14}{21-8}=\frac{0}{13}=0$