Sequences 1
1.The sequence is: -2, 5, 12, 19, ... This is a(n) _________________ sequence, and the next term is ______.
a: Arithmetic
b: 26
Where can you find the formulas for sequences?
Posters up front
Which situation shows causation?
a: The number of hours an hourly employee works, and how much money they earn.
b: The number of dances you go to and how many friends you have.
c: How long you take on the test, and your grade on the test.
a: The number of hours an hourly employee works, and how much money they earn.
Domain is for the _ values
Range is for the _ values
x
y
Which of the following graphs represents an arithmetic sequence? (see question 3 for graphs)
graph 1
2.The sequence is: 1, 4, 16, 64.... This is a(n) __________________ sequence, and the next term is _______.
a: geometric
b: 256
The table shows the population in Earnshawville for the years 2015-2021. Which correlation best describes the strength of the linear association between the population of Earnshawville and the year? (see question 10)
b: strong negative correlation
If given an equation, and the question asks you to find domain/range you should:
Plug it in to desmos to see the graph
Which explicit formula is represented by the graph below? (see question 4 for graph and answer choices)
D: 9-2(n-1)
The table shows the bacteria at different times during an experiment. Make a prediction (educated guess) for what you think the next term will be. (see question 9)
B: 80
What is the r value for a perfect positive correlation?
1
When there are arrows at the end of the graph that continue you on in both directions, the answer is:
All real numbers
Which representation shows the first five terms of a sequence given by the recursive formula and first term listed? (see question 5)
table 3
The table shows the number of customers each hour for a lemonade stand. Which function best models the data in the table? (see question 7)
b: y=4x-2
How do you find the r value?
Plug in to desmos
If a graph has a minimum x or y, but no maximum, then the answer should be:
x or y is greater than or equal to the minimum value
Determine the 50th term in the sequence defined by:
-10+5(n-1)
235
If you want to find the 28493287239 term, which formula should you use?
explicit
Does correlation = causation?
No.
If a graph has two arrows, are the domain and range both automatically all real numbers?
No! Check for minimums and maximums.