The expression 4n – 1 is a rule to describe a certain sequence. What are the first three terms of the sequence?

three, seven, eleven

four, eight, twelve

three, six, nine

four, seven, eleven

Question

The expression 4n – 1 is a rule to describe a certain sequence. What are the first three terms of the sequence?

three, seven, eleven

four, eight, twelve

three, six, nine

four, seven, eleven

anonymous · Answer

four , seven , eleven

anonymous · Answer

can you explain how you got that answer ?

anonymous · Answer

okay the expression 4n-1 , the coefficient 4 shows it is going to repeat , 4 , 8 , 12 , and so on . but there is a (-1) , that shows you are taking away one for each ,except 4 . see how option A says 3,7,11 that is not correct because there is a 3 in the beggining ,  do you understand?

anonymous · Answer

so basically you start with 4 , 8 ,12 , but then you minus 1 from 8 & 12 , so that makes it , four seven eleven

anonymous · Answer

oh okay. thank you for explaining !

anonymous · Answer

but , since you're here.. can you just check to see if i did this other one right ?

anonymous · Answer

yep

anonymous · Answer

okay. so this next one I picked 7+n.

anonymous · Answer

Which expression describes the rule of this sequence?
7, 14, 21, 28, 35…

7 + n

7n

7n

n+ 7 + 7

anonymous · Answer

yes that is right  :) are on on FLVS?

anonymous · Answer

yes :( hbu?

anonymous · Answer

lol yea -_- what grade?

anonymous · Answer

7thgr. hbu?

anonymous · Answer

9th

anonymous · Answer

aha. I hate it. it's too stressful .

anonymous · Answer

aha yeah i agree with you on that one . Did you ever submit this test?

anonymous · Answer

not yet. I have 2 more questions left.

anonymous · Answer

okay good luck :)

anonymous · Answer

Ehh. Thank you.

anonymous · Answer

dont submit yet

anonymous · Answer

im checking over my first answer i gave you.

anonymous · Answer

it is 3,7,11

anonymous · Answer

sorry so A for your 1st question

anonymous · Answer

Which expression describes the rule of this sequence?

Three, six, nine, twelve, fifteen, eighteen, and so on.

three plus the quantity n minus one

three times n

three plus the quantity three times n

three plus n

anonymous · Answer

thats A?

anonymous · Answer

no
The expression 4n – 1 is a rule to describe a certain sequence. What are the first three terms of the sequence?

three, seven, eleven

four, eight, twelve

three, six, nine

four, seven, eleven 

thats A

anonymous · Answer

you sure ?

anonymous · Answer

yees positive

anonymous · Answer

would you like me to explain how i got this ?

anonymous · Answer

Hm. It doesn't matter. If you would like to you can.

anonymous · Answer

well so you understand for next time , take 4n-1 , plug in the values 1,2,3 , so 4*1-1 =3 , 4*2-1=7 , 4*3-1=11 .

anonymous · Answer

your plugging in 1,2,3 for the value of n

anonymous · Answer

aha. okay

anonymous · Answer

thanks.

anonymous · Answer

welcome

anonymous · Answer

have you done flvs for middle school?