Posted by Amy on Monday, October 11, 2010 at 12:35am.
x = 2 , 4 , 6 , 8
y = 18, 34, 50, 66
This is supposed to be a table where the x lines up with the y in order
How would I find the equation to solve this when x = 20?
x goes up by +2
y goes up by +16 but starts with 18

MATH PLEASE HELP  drwls, Monday, October 11, 2010 at 1:54am
The relationship is
y = 2 + 8 x
if x = 18, y = 146 
MATH PLEASE HELP  Amy, Monday, October 11, 2010 at 9:00am
Also, how did you come up with the equation?
Where did the 8 and 2 come from? 
MATH PLEASE HELP  Amy, Monday, October 11, 2010 at 9:29am
I understand now

MATH PLEASE HELP  drwls, Monday, October 11, 2010 at 9:34am
Good.
8 was the obvious slope.
I picked the constant term 2 so that any one of the (x,y) combinations would match.