Posted by Bill Bob on Wednesday, March 23, 2011 at 12:07am.
Suppose you have an after school baby sitting service. You charge a flat fee of $10 per week plus $3 per hour. The equation y = 3x + 10 represents your earnings per week for one child.
Describe the y intercept.
Answer: The y intercept is (0,10) but I'm unsure how to describe. I assume no hours were worked (X=0)....but I can't reconcile the $10 charge.
Thoughts?

Pre Algebra  Mr. Man, Wednesday, March 23, 2011 at 12:21am
The $10 dollar charge is the Yintercept (0,10). Meaning that would be the starting point on your graph in $. Then for every hour worked its an extra 3 dollars, so rise over run 3 over 1. Which would mean every hour worked (xaxis) would juust increase by three.

Pre Algebra  tammy, Thursday, March 24, 2011 at 9:37am
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