What is the slope of the line ?

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn