TEACHER-GUIDE-VERIFIED · TG-V9-044

1. A signal follows S = 800(0.5)^x. Find S after 3 intervals.

Verified solution

Solution: S=800(0.125)=100.

Source: Teacher Guide V9 · English V9. Match the numbers and wording in your printed question before using this solution.

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VIDEO HELP · TG-V9-044

Evaluate an Exponential Signal Model (TG-V9-044)

Evaluate S = 800(0.5)^x after three intervals: 800 × 0.125 = 100. Check by repeated halving: 800 → 400 → 200 → 100. The model specifies no physical units.

Space Math Explorers · approved worked example · 1:29 · Watch on YouTube

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These pages reproduce verified solution steps for the registered V9 questions. It does not diagnose learning needs or replace instruction from a qualified teacher or tutor.