1. Find the slope of the line through each pair of points (-11, -15) and (1,14)
2. Find the slope of the line through each pair of points (16, -19) and (-9,12)
3. Find the slope of the line through each pair of points (-18, -3) and (8, -3)

Slope formula: y2-y1/x2-x1

Question 1:

= 14-(-15)/1-(-11)

= 29/12

= 2 5/12

Therefore, the slope is 2 5/12 or 29/12.

Question 2:

= 12-(-19)/-9-16

= 31/-25

= -31/25

= 1 6/25

Therefore, the slope is 1 6/25 or -31/25.

Question 3:

= -3-(-3)/8-(-18)

= 0/26

Therefore, the slope is 0.

Best of Luck!