Tuesday

July 29, 2014

July 29, 2014

Posted by **Kate** on Wednesday, July 6, 2011 at 7:09pm.

- Math(Pre=Calc) -
**Reiny**, Wednesday, July 6, 2011 at 8:41pmso

t2 = t(1) + 3(2) - 2 = 4 + 4 = 8

t3 = t2 + 3(3)-2 = 8 + 7 = 15

t4 = t3 + 3(4) - 2 = 15+10=25

t5 = t4 + 3(5) - 2 = 25+13 = 38

so the sequence is

4 8 15 25 38 ...

first differences: 4 7 10 13 ....

second diff : 3 3 3 3 ...

ahhh, so the expression is quadratic.

see if can come up with a quadratic to express the sequence 4 8 15 25 38 ....

**Related Questions**

Math - The first term in a sequence of number is t1 = 4. The terms that follow ...

MATH - Please help me with this!! The first term in a sequence of number is t1...

math30 - Sequences 1)A sequence has a first term of 24 and every other term is ...

math - 51.A sequence t is defined where the first term is –4. Each successive ...

Maths - 1..The first 2 terms of a geometric progression are the same as the ...

Math *URGENT - Please give the answers and solutions for each. 1.If the second ...

Math - Question 1 Write the first four terms of the sequence whose general term...

Math PLEASE HELP PLEASE PLEASE PLEASE - Question 1 Write the first four terms ...

Math - an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3...

math - the ninth term of an arithmetic sequence is 23 and the 33rd term of the ...