Which equation is equivalent to X +8 is equal to 21

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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?

Which point is a solution to y s 4x + 5?