Lesson on Geometric Growth and Decay
Authored by Barbara White
Mathematics
11th Grade - University
CCSS covered
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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following graphs could be modelled using a geometric sequence?
A
B
C
D
Tags
CCSS.HSF-IF.C.7E
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The fourth, fifth and sixth terms of a geometric sequence are 7.5, 3.75 and 1.875 respectively. The sum of the first and second terms in the geometric sequence is:
15
30
45
90
Tags
CCSS.HSF.BF.A.2
3.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
A scientist observed that the population of a specific bird species is decreasing by 17% each year and that at the beginning of 2016, there were 483 birds. Predict the number of birds remaining at the beginning
of 2021.
(a)
Tags
CCSS.HSF-LE.A.1C
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Use the recursive rule 𝑡n+1 = 0.65𝑡n, t1 = 120 to complete the following.
Calculate the percentage by which each term decreases
(a)
Tags
CCSS.HSF.BF.A.2
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Use the recursive rule 𝑡n+1 = 0.65𝑡n, t1 = 120 to complete the following.
Calculate the fourth term rounded to the nearest whole number.
(a)
Tags
CCSS.HSF.BF.A.2
6.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
P2 BONUS QUESTION: t3 = 90, t5 = 57.6. What is the first term (round answer to nearest whole number)?
(a)
Tags
CCSS.HSF.BF.A.2
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