Answer:B
Step-by-step explanation:The graph of the question in the attached figure
we know that
the linear equation in slope intercept form is equal to
y = mx + b
where
m is the slope
b is the y-intercept
x --> is the time in hours
y --> is the distance in miles
In this problem we have
Bus A
y = 125/5 x
The slope of the linear equation represent the speed of the bus
so
The speed of bus A is
125/5 = 25 miles/hour
Bus B
Find the slope
take two points from the graph
(0,0) and (3,200)
The formula to calculate the slope between two points is equal to
m = y2 + y1/x2 - x1
substitute
m = 200 - 0/3 - 0
m = 66.67 miles/hour
Compare the slope Bus A with the slope Bus B
66.67 mile/hour > 25 miles /hour
therefore
Bus B travel faster