Train A leaves Paris and travels at a constant speed of 75 mph toward Pisa. At the same time, Train Bleaves Pisa headed toward Paris at a constant speed of 50
mph. Let x represent time traveled in hours and let y represent miles from Paris. If
Paris and Pisa are 500 miles apart, when will the two trains pass each other?
Train A Traveling 75 mph
WH
y = 75x
500 miles
Paris, France
Pisa, Italy
Train B - Traveling 50 mph
y = 500 - 50x

athey will cross twords the end of the track for train A.

Step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.