Answer:
K=-13/5
Step-by-step explanation:
Ok so this equation is exactly like a point-slope formula
Y=Mx+b
Think of that k as m
You have b=4 and b is the y-intercept! So that means the coordinates are (0,4)
Now you use slope formula to figure out the slope:
Using (0,4) and (5,-9)
-9-4/5-0 = -13/5
K=-13/5
