Answer:

1. k=2

2. k=1/3

Step-by-step explanation:

1. y=kx (substitute the given; y=16, x=8)

16=8k (divide both sides by 8)

k=2

2. y=kx (substitute the given; y=2, x=6)

2=6k (divide both sides by 6)

k=2/6 (simplify)

k=1/3