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2 cards from this section. Quick, good the night before a test.
What is the common ratio of the sequence 3, 9, 27?
Divide the second term by the first term.
Identify if the sequence 2, 4, 8, 16 is geometric.
Check if the ratio remains constant.
What formula do you use to find the common ratio?
Remember, you divide the next term by the current term.
Is the sequence 10, 30, 90, 270 geometric?
Check if the ratio between consecutive terms is constant.
A tree's height triples each year. If it is 2 meters tall now, how tall will it be in 6 years? What is the formula you would use?
Remember to calculate how many times it grows!
Identify if the series 100, 50, 25, ... is geometric, and if so, what is the common ratio?
Check successive ratios to confirm!
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