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  1. AP Calculus
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Differential Equations

Question 1
college-boardCalculus AB/BCAPExam Style
1 mark

What can be determined by analyzing the slope field of a function?

Question 2
college-boardCalculus AB/BCAPExam Style
1 mark

Is it possible for two very different-looking ordinary equations to produce identical sloped fields?

Question 3
college-boardCalculus AB/BCAPExam Style
1 mark

If a differential equation's solution curves resemble concentric circles, what does that suggest about its associated slope field?

Question 4
college-boardCalculus AB/BCAPExam Style
1 mark

In analyzing a slope field for dydx=ey−x\frac{dy}{dx} = e^{y-x}dxdy​=ey−x, which pattern would suggest that solution curves exhibit exponential growth when moving rightward along them?

Question 5
college-boardCalculus AB/BCAPExam Style
1 mark

Where would you expect to find orthogonal trajectories intersecting curves generated by the slope field of dydx=xy\frac{dy}{dx}=xydxdy​=xy, considering only the first quadrant?

Question 6
college-boardCalculus AB/BCAPExam Style
1 mark

Given the differential equation y′=−2xy' = -\frac{2}{x}y′=−x2​, find the particular solution that satisfies the initial condition y(1)=2y(1) = 2y(1)=2.

Question 7
college-boardCalculus AB/BCAPExam Style
1 mark

Which method would be most efficient to predict the behavior of solutions near a point (x0,y0)(x_0, y_0)(x0​,y0​) in a slope field generated by the differential equation dydx=x2y\frac{dy}{dx} = \frac{x^2}{y}dxdy​=yx2​?

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Question 8
college-boardCalculus AB/BCAPExam Style
1 mark

When examining a slope field for dydx=x−y\frac{dy}{dx} = x - ydxdy​=x−y, which approach gives immediate insight into long-term behavior of solutions without solving the differential equation?

Question 9
college-boardCalculus AB/BCAPExam Style
1 mark

When examining a slope field for differential equation dydx=cos⁡(y)−x\frac{dy}{dx} = \cos(y)-xdxdy​=cos(y)−x, which of the following indicates stability in the solutions around any point (x,y)(x,y)(x,y)?

Question 10
college-boardCalculus AB/BCAPExam Style
1 mark

What does an abrupt change from positive to negative slopes (or vice versa) within close proximity on a slope field generally indicate about the potential solutions to a differential equation at those regions?