In Exercises 1720, find the slope-intercept form of the equation of the line passing through the points.

Chapter 5 Notes: th An explicit formula in the following sense if you want to know the 125 term of the sequence, you simply “plug in” 125 for n: More common, however, when building models, we work with a recursive formula. For example, consider a population that doubles each year. If we let x rn resent the size of the population at time step n, then we can model how this population changes from one time step to the next by the equation: x =2x n+1 n How is this different Well, let’s consider how we would find the population size after 125 time steps: th So, in some sense, to find the 125 term, we need to know all of the previ