Algebra 2: Polynomial Question

Question

Suppose a company's profit (in dollars) can be modeled -.25x^2+10x-20, where x is the number of products sold. What is the company's profit from selling 20 products?

Answer 1

if the model is .25x^2+10x-20, the profit for 20 product is 280

if there is a negative sign before .25, the profit is 80.