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AP Calculus BC/Unit 7: Differential Equations
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Differential Equation From Slope Field

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Question 2: Consider a slope field where the slopes depend solely on the x-coordinate. At x = 0 the tangents are horizontal, and as x increases the slopes increase linearly (for example, at x = 5 the slope is 10). A solution curve passing through (0, 4) exhibits this behavior. Which differential equation is consistent with this slope field? (Do not use a calculator)

A

dydx=2∗x\frac{dy}{dx} = 2*x

B

dydx=x+4\frac{dy}{dx} = x+4

C

dydx=2∗y\frac{dy}{dx} = 2*y

D

dydx=2∗x+4\frac{dy}{dx} = 2*x+4

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