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3.5 Exercise 77

Avg difficulty 2.5

Solve.

The number of unwatched shows in Sylvia’s DVR is 85. This number grows by 20 unwatched shows per week. The function N(t)=85+20tN \left(t\right) = 85 + 20 t represents the relation between the number of unwatched shows, N, and the time, t, measured in weeks.

ⓐ Determine the independent and dependent variable.

ⓑ Find N(4).N \left(4\right) . Explain what this result means

OpenStax Intermediate Algebra 2e, 3.5 Relations and Functions, exercise 77

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Adapted from Intermediate Algebra 2e © 2020 Rice University. Licensed under CC BY 4.0. Source: Intermediate Algebra 2e. Imported at revision 77a933c.