Practice problem
Suppose yyy varies jointly with 4x4x4x and z\sqrt{z}z. What does kkk equal when y=18y=18y=18, x=3x=3x=3, and z=9z=9z=9?
k=6k=6k=6
k=1.7k=1.7k=1.7
k=0.5k=0.5k=0.5
k=2k=2k=2
Type a concept, like “slope” or “photosynthesis”.