A phone company charges for service according to the formula: C(n) = 25 +0.09r, where n is the number of minutes talked, and C(n) is the monthly charge, in dollars. %3D The rate of change in this equation is: Select an answer Select an answer The initial value in this equation is: Se Dollars per Minute Question Help: Video Dollars Subrnit Question Minutes per Dollar Minutes

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.