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#13: For time

#7:  A particle moves along the -axis so that at any time ,

#26: If has exactly two critical points on the open interval , which of the following must be true?

#14: If is a differentiable function and

#19:

#20: Let be a twice-differentiable, increasing function of . If and , which of the following must be true on the interval ?

#22: Shown above is a slope field for which of the following differential equations?

#16: Let be the function given by

#25: Which of the following is a solution to the differential equation

#1: The graph of