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Mathematics 15 Online
mathclass:

..

mathclass:

mathclass:

yes

jhonyy9:

15,7 -1,-9 so than you look on these numbers what see how many is the difference between these numbers ?

mathclass:

8,9

jhonyy9:

15-7 = ? 7-(-1) = ? -1 -(-9) = ?\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9 15,7, -1,-9 so than you look on these numbers what see how many is the difference between these numbers ? \(\color{#0cbb34}{\text{End of Quote}}\)

jhonyy9:

i ve forget a virgule between 7 and -1

mathclass:

5

jhonyy9:

no 15-7 = ?

mathclass:

8

jhonyy9:

yes 8

mathclass:

so that is what i put for the answer

jhonyy9:

no you need form edit a formula of this sequence

mathclass:

so how do i do that

jhonyy9:

15 let be a_1 7 let be a_2 so how you get from a_1 the a_2 using the common difference of 8 ?

jhonyy9:

from 15 how you get 7 ?

mathclass:

minus 8

jhonyy9:

yes 15 -8 = 7 a_1 -8 = a_2 or a_2 = a_1 -8 so from this result that you get the next term always subtracting the 8 from previous term

mathclass:

thank you

jhonyy9:

yw anytime

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