Answer:
1976
Step-by-step explanation:
This parabolic graph has its minimum at the vertex.
Here the coefficients of the quadratic are a = 18.75, b = -450 and c = 3200.
The t value of the axis of symmetry is:
-450
t = ------------- = 12 (years)
2(18.75)
This parabola opens up. The vertex (and min. value) is at ( 12, V(12) ).
t = 12 years must be added to the model year 1964.
Thus, the car had the least value in 1964 + 12, or 1976.
