Two parallel paths 20 m apart run east-west through the woods. Brooke walks east on one path at 6 km/h, while Jamail walks west on the other path at 4 km/h. If they pass each other at time t = 0, how far apart are they 13 s later, and how fast is the distance between them changing at that moment? (Use decimal notation. Give your answer to three decimal places.) distance between them: meters dL m/s dt

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.