What is the slope of the line passing through the points (−1, 7)(−1, 7) and (4, −1)(4, −1)?
a. −2−2
b. −5/6
c. 2
d. −8/5

Respuesta :

slope = (y2 - y1)/(x2 - x1) = (-1 - 7)/(4 - (-1)) = -8/(4 + 1) = -8/5