Plz help me. what is the theoretical probability of the spinner landing on blue?

The value √10 and √15 are plotted on the number line

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079