Answer:
3
Step-by-step explanation:
Slope is given by
[tex] \frac{y2 - y1}{x2 - x1} [/tex]
where y2 = -1, y1 = -7, x2 = -1, x2 = -3
[tex] \frac{ - 1 - ( - 7)}{ - 1 - ( - 3)} = \frac{ - 1 + 7}{ - 1 + 3} [/tex]
[tex] = \frac{6}{2} = 3[/tex]
