MATH PLEASE HELP
posted by Amy .
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

The relationship is
y = 2 + 8 x
if x = 18, y = 146 
Also, how did you come up with the equation?
Where did the 8 and 2 come from? 
I understand now

Good.
8 was the obvious slope.
I picked the constant term 2 so that any one of the (x,y) combinations would match.
Respond to this Question
Similar Questions

algebra
solve the system by graphing x+y=4 y=2x+1 I think these are the kind that you take equation #1 and rewrite it as y = x + 4 and do the table for it plot the dots and connect the line for it. then take equation #2 y= 2x+ 1 do the table … 
calculus
how would you find the median of a pdf picture it basically is a triangle with points (0,0) (6,.2) (10,0) I found the centroid, or where all the lines from the vertex to the middle of each side intersect and found the intersection … 
Geometry
Solve for x x/6 = x+1 / 9 x= 2 Tell whether the lines are parallel based on the given proportions (I think they are supposed to come out equal in order for the lines to be parallel) 16/4 = 8/2 32=32 yes, the lines are parallel 10/4 … 
Geometry
Solve for x 5/3 / 4/3 = x / 20/9 x= 25/9 =2.77777.... 5/4 = x/3 x= 15/4 = 3.75 20/36 / 21/x x= 189/5 = 37.8 x/6 = x+1 / 9 x= 2 Tell whether the lines are parallel based on the given proportions (I think they are supposed to come out … 
algebra
HOw do I make a table of values for y equals 3/2? 
Math
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? 
Math
/8/+/5/ Simplify??? the lines are supposed to go straight but ya i cant find how to do this or the answer please HELP!!! 
Physics
Should the wavelengths computed from 2nd order lines be more accurate or more precise than those compute from 1st order lines? 
English
In English class, I have to write a 2 voice poem. My teacher said that I am supposed to make it 10 lines longs on each side. Does that mean that it is supposed to go back and forth 10 times or each side has to have 10 lines? 
English
1. May I take your order? 2. Would you like to order now?