Please help and explain

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Write the following as a base and exponent

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g