Writing equations from a word problem.

We started looking at creating an equation from a word problem / pattern.  We will go over this again in our double block, but here is an example:

STEPS:

• create a table of values
• is the pattern a linear one?  (does x and y go up/down by the same amount each time?)
• rise = change in y's
• run = change in x's
• slope = rise/run
• go 'backwards" one spot on your graph to see where the y-intercept would be (green)
• If you need to, draw a graph to see the slope and y-intercept.