Christina B.

asked • 01/15/21

help me pleaseeeee

What is the 15th term in this quadratic sequence?

8, 14, 24, 38,...


2 Answers By Expert Tutors

By:

Farah V. answered • 01/15/21

Tutor
New to Wyzant

Experienced Elementary and High School Tutor

Julie P.

tutor
the next step is to Remember, nth term = an2 + bn + c where a is the 2nd difference ÷ 2 and c is the zeroth term
Report

01/15/21

Julie P.

tutor
you need to calculate your zeroth term
Report

01/15/21

Julie P.

tutor
because your 1st term is your 8
Report

01/15/21

Julie P.

tutor
A quadratic sequence is one whose first difference varies but whose second difference is constant. so we saw that the first differences varied by the second differences were all 4 (constant)
Report

01/15/21

Julie P.

tutor
so your 2nd difference will be 4
Report

01/15/21

Julie P.

tutor
let me know if you need more help
Report

01/15/21

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.