Slope of a line

1. Tell whether the slope of the following are positive, negative, zero or undefined.​

1. Red​

b.  Blue​

c.  Purple​

d.  Green​

2.  Determine the slope of the line given its graph

a.

b. 

3.  Determine the slope of the line containing each given pair of points.​

1. (2,3) and (5, -1)​

b. (2,3) and (2, -1)​

c.  (4,-1) and (-2, -1)​

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