Question

93. Distance Between Cars Cars A and B are traveling in the same direction. Their distances in miles north of St. Louis after $x$ hours are computed by the functions $f_A$ and $f_B$, respectively. The graphs of $f_A$ and $f_B$ are shown in the figure for $0 \le x \le 10$. (a) Which car is traveling faster? Explain. (b) How many hours elapse before the two cars are the same distance from St. Louis? How far are they from St. Louis when this occurs? (c) During what time interval is car B farther from St. Louis than car A? y 700 y = f_A(x) 600 500 400 y = f_B(x) 300 200 (2.5, 225) 100 Distance (miles) 0 1 2 3 4 5 6 7 8 9 10 Time (hours) x

          93. Distance Between Cars Cars A and B are traveling
in the same direction. Their distances in miles north of
St. Louis after $x$ hours are computed by the functions
$f_A$ and $f_B$, respectively. The graphs of $f_A$ and $f_B$ are
shown in the figure for $0 \le x \le 10$.
(a) Which car is traveling faster? Explain.
(b) How many hours elapse before the two cars are
the same distance from St. Louis? How far are
they from St. Louis when this occurs?
(c) During what time interval is car B farther from
St. Louis than car A?
y
700
y = f_A(x)
600
500
400
y = f_B(x)
300
200
(2.5, 225)
100
Distance (miles)
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
x

93. Distance Between Cars Cars A and B are traveling
in the same direction. Their distances in miles north of
St. Louis after x hours are computed by the functions
fA and fB, respectively. The graphs of fA and fB are
shown in the figure for 0 ≤ x ≤ 10.
(a) Which car is traveling faster? Explain.
(b) How many hours elapse before the two cars are
the same distance from St. Louis? How far are
they from St. Louis when this occurs?
(c) During what time interval is car B farther from
St. Louis than car A?
y
700
y = fA(x)
600
500
400
y = fB(x)
300
200
(2.5, 225)
100
Distance (miles)
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
x

Added by Beatriz D.

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