Taylor's 14th(I Think XD) Blog

This is the rest of my notes from Ch. 13.1.

A sequence is a set of numbers. Today we will learn a bit about geometric sequence which is when you multiply the same number to every term.

This is the formula:

tn= t1 x r ^n-1

r is the number that is being multiplied or divided. The n and one by the t are small to.

Ok let's do some examples.

Find the first 4 terms of this equation tn= 6 x 5^ n-1

t1=6 x 5^ 1-1 First replace n with 1,2,3,and 4 and solve the equation.
t2=6 x 5^ 2-1
t3=6 x 5^ 3-1
t4=6 x 5^ 4-1

t1= 6 Then you have your answers.
t2= 30
t3= 150
t4= 750

4,8,,16,32.... find the formula for the nth term.

4,8,,16,32.... First you need to figure out what is being multiplied or divided from each number. In this case it is multiplying by 2.

tn= t1 x r ^n-1Then write out your equation.

tn= 4 x2 ^n-1 Then fill out the parts that you know and since you cannot do anything else to this equation this is your answer.

These are the rest of my notes on Ch. 13.1. So UN TIL MONDAY SEE YALL!!!