Section: Mathematical Reasoning

13) The line connecting points (3,-6) and (-9,2) has slope: 

1. -²/₃
2. ²/₃
3. -⁸/₁₀
4. ⁸/₁₂

The equation for determining slope is as follows:

m=^{y2 - y1}_{x2 - x1} where x1 is not equal to x2.