1. The problem statement, all variables and given/known data A bird dove under water and re-emerged with a fish. Following is the table which shows the bird's estimated flight: Time(s),Height(m) 0, 7 2, 10 4, 5 6, 0 7, 0 8, 3 Find a cubic equation to model the data. 2. The attempt at a solution y=a(x-6)(x-7)(x-k) a,k are both unknown variables 5=a(4-6)(4-7)(4-k) Substituted any 2 points from the table above 5=a(-2)(-3)(4-k) 5=6a(4-k) Not sure how to solve because there are 2 unknowns. Am I on the right track?