PART I. WRITTENWORK: Test 1: Directions: Fill in the blanks with the correct word or words to make the statement complete. Choose your answer below. Common difference arithmetic mean explicit formula common difference an = a1 + (n-1)d arithmetic mean number of terms nth or last term first term second term finite infinite Term Progression sequence 1.A is a list of numbers written in a specified order that follows a definite pattern or rule. 2. A sequence is also called 3. Each number in the sequence is called 4. sequence contains a finite number of terms, while sequence contains an infinite number of terms. 5. In a sequence, n refers to and an refers to a1 means a2 means and so on. 6. The term or terms between any two non-consecutive terms of an arithmetic sequence is called 9 7. If the first term and the common difference of an arithmetic sequence are given, then the nth term can be determined using the formula 8. an = dn + c is known as the formula of an arithmetic sequence where d is the 9. If a, m, b forms arithmetic sequence, then m is called 10. The first step in inserting 2 or more arithmetic means between non-consecutive terms of an arithmetic sequence is to find the value of​