Step-by-step explanation:
The ratio of number of pages to time is given by the slope of the straight line,
The slope is defined by
[tex] \frac{y - y}{x - x} = \frac{10 - 0}{15 - 0} = \frac{10}{15} = \frac{2}{3} = 0.667[/tex]
Use any two point from the graph,
(0,0) & (15,10)
He reads about 0.667 pages/min
