Question

medal question

Answer 1

@dirtydan667 @zepdrix @DSS

Answer 2

@graysondeblock

Answer 3

first one is not a function since it yields two values for a single parameter

Answer 4

@zepdrix

Answer 5

@David....

Answer 6

@wolfe8

Answer 7

What defines an arithmetic sequence? Common difference? Does it have that?

Answer 8

Basically, to go to the next term do you add the same number again and again?

Answer 9

yes?

Answer 10

Then yes it is. That number you keep adding is a common difference, which is what arithmetic sequences must have.

Answer 11

so is the answer C

Answer 12

Looks right

Answer 13

thanks

Answer 14

You're very welcome. This should help further: http://www.mathsisfun.com/algebra/sequences-series.html