- #1
CR7
- 1
- 0
Homework Statement
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?