Answer:
[tex]h(x) = 80x^2 + 560x[/tex]
Step-by-step explanation:
To find the function h(x), that represents the total number of seats, we just need to multiply the functions f(x) (number of rows) and g(x) (number of seats per row):
[tex]h(x) = f(x) * g(x)[/tex]
[tex]h(x) = 80x * (x+7)[/tex]
[tex]h(x) = 80x*x + 80x*7[/tex]
[tex]h(x) = 80x^2 + 560x[/tex]
So the function that represents the total number of seats is:
[tex]h(x) = 80x^2 + 560x[/tex]
