Given: function[img=34x25]17de81e321f7032.png[/img] has a second-order derivative within the interval of [img=8x19]17de81e32caa1a1.png[/img], and . Then, within the interval of , the curve is:
A: increasing and convex upward
B: decreasing and convex upward
C: increasing and convex downward
D: decreasing and convex downward
A: increasing and convex upward
B: decreasing and convex upward
C: increasing and convex downward
D: decreasing and convex downward
举一反三
- You stand on a spring scale on the floor of an elevator . Of the following, the scale shows the minimum reading when the elevator： (The magnitude of acceleration is same.) A: moves upward with increasing speed B: moves upward with decreasing speed C: remains stationary D: moves downward with decreasing speed
- The supply curve slopes upward when graphed against ________, because of ________. A: the price of the good; increasing marginal cost B: the price of the good; decreasing marginal cost C: income; increasing marginal cost D: income; decreasing marginal cost
- In order to determine the slope and displacement of a beam by integration, it is important to use the proper signs for M, V or w. Positive deflection v is ( ) and as a result, the positive slope angle [img=9x19]17de8338539dd00.png[/img] will be measured ( ) from the [img=11x14]17de83385e83d59.png[/img] is positive to the ( ). A: upward, counterclockwise, right B: upward, counterclockwise, left C: downward, clockwise, right D: upward, clockwise, left
- If the function [img=34x25]17de81deae56b45.png[/img] is a monotonically increasing continuous function, then [img=201x51]17de81deba1b3ad.png[/img].
- If a firm takes the wage as given, then the supply curve of labor to that firm is A: horizontal. B: vertical. C: upward sloping. D: downward sloping.