Answer:
Step-by-step explanation:
Proportional relationship equation:
- y = kx, where k- coefficient of proportionality.
Use given values in table to find the value of k:
- 9 = 15k ⇒ k = 9/15 = 0.6
- 7.2 = 12k ⇒ k = 7.2/12 = 0.6
- 1.5 = 2.5k ⇒ k = 1.5/2.5 = 0.6
So the equation is:
