Question

2. what is the slope of the line that passes through the pair of points (-2,7) (18,1)

Answer 1

Explanation:

slope = y₂-y₁/x₂-x₁

`=(1-7)/(18-(-2))\\\\ =(-6)/(18+2)\\\\ =(-6)/(20)\\\\ =(-3)/(10)`

1-7 = -6. Here if two numbers have different sign, then subtract and put the bigger numbers sign for the result.