9/2
9.07
6.2
7/2
3.1
5 feet
37 feet
21 feet
53 feet
45 feet
For the curve given by the equation g(x)= x3+x4
No extrema exist
There is minimum at x=3/4
There is maximum at x=-3/4
There is minimum at x=-3/4
There is maximum at x=3/4
None of the above
A 13ft ladder is leaning against a wall. If the top of the ladder slips down the wall at a rate of 2ft/sec how fast will the foot of the ladder be moving away from the wall when the top is 5ft above the ground?
3 ft/sec
4 ft/sec
7 ft/sec
The line 2x +3y = a is tangent to the graph of f(x)=bx2 at the point where x = 3. Then the values of a and b are respectively given by
-1/9, 3
3, 1/9
3, -1/9
1/9, 3
-1/9, -3
the curve has a turn at x=6
(6, 0.479) is local minimum point for f(x)
x-axis is horizontal asymptote for the curve
There are no vertical tangents for the curve.
Domain of f(x) is [0, ()
A railroad track and a road cross at right angles. An observer stands on the road 140 meters south of the crossing and watches a train traveling at 80 meters per second. At how many meters per second is the train moving away from the observer 6 seconds after it passes through the intersection?
59.60
76.8
79.20
62.00
47.40
1
2
18
15
16
11
35
24
41
29
45
9
17.42
15.32
13.21
15.64
19.23
1/3
8/3
1
0
2/3