Answer:
Slope formula is y2-y1 over x2-x1
Once you find the slope you are going to need to put it into point slope form which is y-y1=m(x-x1)
Explanation:
9-(-2) divided by -3-8 is 11 over -11 which your slope is -1 m=-1
Then you use the point slope formula
y-(-2)=-1(x-8)
Then solve algebraically
Y+2=-1x+8
-2. -2
Y=-1x+6 , that is in slope-intercept form your m which is your slope is -1 and your b which is your y intercept is 6
So basically your answer is slope(m) which is -1.. hope this helps!!