Get the Math & Points: August 2016 CC Algebra I Regents #4

aug-2016-cc-alg-i-4

f(x) means y!
What is the equation of a line?  y = mx + b where m is slope and b is the y-intercept.  So here the slope is -2 which means as x increases, y decreases.  Look at the 4 tables: only one of them is decreasing when x is increasing.
We need to look carefully because the x values skip from 0 to 2 to 4 to 6.
Let’s check this with the graphing calculator.  Two more points 🙂

 

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