Find the slope of the line through each pair of points.

5) (-6,-,16)
6) (-3,,15)
7) (3,,1)
8) (10,,5)
9) (-4,-,-11)
10) (3,-,-2)
11) (-14,-,-20)
12) (-11,-,11)
13) (-19,-,4)
14) (4,,15)

You can use this formula: (y1 - y2) / (x1-x2)

For example, using question 5, 

(-11-16)/ [-6-(-20)]
= -17/14

Given that it is a negative number, it would mean that the line is downward-sloping.

All the best!

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