Label the slope and y intercept

slope= -4/3, Y-intercept: 7

Step-by-step explanation:

So for the slope, you use y2-y1/ x2-x1:

-1 - 3/ 6 - 3 = -4/ 3

this will be the same no matter which two points you use.

For the y-intercept, plug in a point and solve for b.

y = mx+b

-5= -4/3(9) + b

b= 7