Question

10. Sean promotes certain brands on his social media page for compensation. His monthly profit can be modeled using

the quadratic function p(x) = -0.00425x² +7z-1000, where p(x) is the amount of profit earned over
number of days. The graph of the function is shown. Use the graph to find the zeros of the function and interpret
them in context.

Answer 1

The zeros are (158.017, 0) and (1489.042, 0)

The profit earned in 158.017 days and 1489.042 days is equal to 0. This means that Sean only earns money (makes a profit) when the amount of days he promotes a brand is greater than 158.017 but less than 1489.042 days.