4.4 Graphs of Polynomial Functions

Question

When there are 23 apple trees per acre, the average yield has been found to be 300 apples per tree. For each additional tree planted per acre, the yield per tree decreases by 13 apples per tree. How many additional trees per acre should be planted to maximize the yield? (Round your answer to the nearest whole number.)

Answer 1

Y(t) = (23 + t)(300 - 13t)

Y(t) = 6900 + 300t - 299t - 13t²

Determine the vertex. It shall give you the number of trees that make the maximum.