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Differential equation for slope field

dydx=f(x,y)\frac{dy}{dx} = f(x, y)

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Differential equation for slope field

dydx=f(x,y)\frac{dy}{dx} = f(x, y)

General solution of a differential equation

y=F(x)+Cy = F(x) + C

How to find critical points?

Solve dydx=0\frac{dy}{dx} = 0 or where dydx\frac{dy}{dx} is undefined.

Formula for integrating 11+x2\frac{1}{1+x^2}

11+x2dx=arctan(x)+C\int \frac{1}{1+x^2} dx = \arctan(x) + C

How to represent a family of functions?

y=f(x)+Cy = f(x) + C, where C is an arbitrary constant.

How to find a particular solution?

Use initial condition y(x0)=y0y(x_0) = y_0 to solve for C in y=f(x)+Cy = f(x) + C.

What does dydx=xy\frac{dy}{dx}=x-y represent in slope field?

Slope at any point (x,y) is the difference between x and y.

How is the general solution represented?

y=f(x)dx+Cy = \int f(x) dx + C

How to find the critical points graphically?

Look for horizontal or vertical tangents on the graph.

How to represent slope at a point?

dydx(x0,y0)\frac{dy}{dx} |_{(x_0,y_0)}

What is a slope field?

A visual representation of solutions to differential equations, showing slopes at different points.

What is a critical point?

A point where the derivative of a function is zero or undefined.

What is a differential equation?

An equation that relates a function with its derivatives.

What is the constant of integration?

An arbitrary constant (+C) added during integration, representing a family of solutions.

What is a family of functions?

A set of solutions to a differential equation, each differing by the constant of integration.

What do horizontal line segments in slope field indicate?

Indicate a slope of zero, potential critical points.

What do vertical line segments in slope field indicate?

Indicate an undefined slope, potential critical points.

What is the significance of steepness of line segments in slope field?

Represents the magnitude of the slope.

What is an initial condition?

A specific value used to determine the constant of integration (+C) and find a particular solution.

What is a particular solution?

A single solution from the family of functions, determined by an initial condition.

Explain how slope fields help visualize solutions to differential equations.

Slope fields provide a graphical representation of the slope at various points, allowing us to approximate solution curves without explicitly solving the differential equation.

Explain the significance of the constant of integration (+C) in solving differential equations.

The constant of integration accounts for the fact that the derivative of a constant is zero, leading to a family of possible solutions differing by a constant value.

Explain how initial conditions are used to find a particular solution from a family of functions.

Initial conditions provide a specific point on the solution curve, allowing us to solve for the constant of integration and identify a unique solution.

What does it mean when line segments are horizontal?

The derivative is zero, indicating a potential maximum or minimum.

How to determine increasing/decreasing behavior from slope field?

Positive slopes indicate increasing function, negative slopes indicate decreasing function.

How does the density of line segments relate to the function's behavior?

Denser segments indicate faster changes in the function's value.

What is the relationship between slope field and derivative?

Slope field visually represents the derivative of a function at various points.

How to determine concavity from slope field?

Observe how the slopes change; increasing slopes indicate concave up, decreasing slopes indicate concave down.

Explain the concept of equilibrium solutions.

Equilibrium solutions are constant solutions where dydx=0\frac{dy}{dx} = 0 for all x, represented by horizontal lines in the slope field.

What is the significance of '+C' in the solution?

It represents the vertical shift of the solution curve.