Solve Differential Equation of Family of Curves and Orthogonal Trajectories

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SUMMARY

The differential equation for the family of curves represented by the equation y = c - 2x is derived as dy/dx = -2. This indicates that the slope of the tangent line to any curve in this family is constant at -2. The orthogonal trajectories to this family of curves are represented by the differential equation dy/dx = 1/2, which signifies that their tangent lines are perpendicular to those of the original family at their points of intersection.

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  • Understanding of differential equations
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  • Familiarity with orthogonal trajectories
  • Basic algebraic manipulation skills
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  • Study the derivation of differential equations from families of curves
  • Learn about orthogonal trajectories in calculus
  • Explore the concept of slope fields and their applications
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Doing some extra credit and got stuck on this one.


Find the differential equation of the family of curves and of the orthogonal trajectories.

y = c - 2x

Needing a little help on this one...

Thanks
 
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"The differential equation of a family of curves" means a differential equation such that that the general solution to the differential equation is that family of curves. Can you think of a differential equation that has
y= c- 2x as its general solution?

One curve is orthogonal to another if there tangent lines are perpendicular where they intersect. What does this tell you about there derivatives?

(Actually, all "curves" satisfying y= c-2x are straight lines.)
 

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