1. Write an equation for the nth term of the Arithmetic sequence. Use the Formula: an = a + (n - 1)d
2. Identify if the given sequence is Arithmetic, Geometric, or neither.
20, 15, 10, 5

An object is accelerating at a constant rate. its velocity in feet per second as a function of time in seconds can be modeled by the linear function v(t) = 2.5t. what does the dependent variable represent for this function? a) acceleration b) distance c) slope d) velocity