Answer:
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
