Nonlinear model interpretation
Functions and exponentials · Stage 4
Recognize the pattern
Interpret an exponential base as 1 plus or minus the rate.
Useful ruleModel parameters in context
Build on: ADM-13
Try it before reading the solution
In P(t)=200(0.8)^t, what does 0.8 represent?
This teaching example is original and is not an official SAT question.
Reasoning
0.8=1−0.2, so 80% remains and 20% is lost each period.
Answer20% decrease each time period
03 · Next step
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Practice questions remain in English, as on the SAT.