Practice Summary (7) - Arithmetic Sequences - IB 10 Mathematics

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9 questions

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6 sample questions

Question 1.
What is the common difference in the sequence: 10, 15, 20, 25?
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Subtract the first term from the second term.
Question 2.
Find the first term in the sequence: 4, 9, 14, 19.
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The first term is where the sequence begins.
3Question 3.
What is an arithmetic sequence?
- A sequence with a varying difference
- A sequence where the difference is constant
- A random sequence
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Remember the definition of constant difference.
4Question 4.
True or False: The sum of an arithmetic sequence can be found using S_n = (2a + (n - 1)d)/2.
- True
- False
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Think about other forms of the sum formula.
Question 5.
An arithmetic sequence has its 1st term as 2 and the 50th term is 200. What is the common difference?
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Use the nth term formula to set up an equation.
Question 6.
If the sum of the first four terms of an arithmetic sequence is 44 and the first term is 8, what is the common difference?
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Write out the sum and plug in the values you know.

5 more questions in this section. Enroll free to practise them all.