Linear Extrapolation

9283Last week you were introduced to graphing linear functions. One common use of linear equations is linear extrapolation, where you take real data to make a linear equation, and then use it to make predictions.

For this math-based discussion, follow the steps below. Type all math in the discussion using the Blackboard Math Editor. Make sure you are giving details and explaining each step in your post.

Research the sales or revenue for a company and write 2 ordered pairs in the form (year, dollars).
Find the slope between those two points and interpret what it means in context for the company you chose.
Use Point-Slope Form to write the equation of the line between these points.
Use your equation to predict future sales or revenue, and discuss whether you think your prediction will be accurate and why/why not.