What is the slope between the following points: (8, –1) and (–7, . a.1/3. b. 3. c. -1/3. d. -3

The answer is D. -3
you subtract x2 for x1 over y2 for y1 then you'll get 15/-3 then simplify the fraction

The slope of the line given 2 points is calculated by the equation,
                             m = (y2 - y1) / (x2 - x1)
where m is the slope, x's and y's are the abscissas and ordinates of the points. Substituting the known values,
                             m = (4 - -1) / (-7 -8) = -1/3
Therefore, the answer is letter C. -1/3.