How do you find the possible a value and exact values for r and s in this function?

What is the equation of the graph below? y=sec(x)-4

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells, n, and the total amount he earns in a year, e. what is the total amount abe would earn from selling 10 apartments in one year

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?