Based on the data obtained from the Census Bureau, the manager of Plymouth Van Lines estimates that the percent of total population relocating in year (t 0 corresponds to the year 1960) may be approximated by the formula PIt)= 12.2e-0.169t The rate of change of percent of total population in the year 1970 is

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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.