This handout reviews major concepts tested on Free Response Question #2. Secant LinesAverage Rate of ChangeEstimating using Average Rate of ChangeOverestimates and UnderestimatesError and Confidence in EstimatesDomain and Range RestrictionsThe "What To Do When ..." page pairs a process with four common question stems for Free Response Question #2. Concepts include ... Using data from a contextual scenario to write equations given a model functionUsing data to calculate unknown values of a functi