Point-Slope

Standard

I honestly have no clue how many times / classes / students I’ve taught Point-Slope as a rote formula to memorize, plug in values and simplify.  No discussion, except that its derived from the slope formula.

But after some discussion / great convo on Twitter, I’ve arrived at the solution for now.

To introduce it simply as a vertical translation of a direct variation graph.

https://www.desmos.com/calculator/nb8le3gwnr?embed

Advertisements

One response »

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s