Online College Courses for Credit

Precalc Lesson P.2 "Cartesian Coordinate System"

Precalc Lesson P.2 "Cartesian Coordinate System"

Author: Chad Bray

To create a scatter plot and linear model (equation for the line of best fit) using a graphing calculator.

To use a linear model to make predictions.

See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

Begin Free Trial
No credit card required

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Video of the Lesson

There is only one example in the "Guided Practice" segment. You should have your graphing calculator available and follow the steps to ensure that you know how to enter data, create a scatter plot and find a linear model for a set of data.

PowerPoint of the Lesson


1) Complete the "Review" problems from the beginning of the lesson.

2) Write a summary of the lesson. Use proper grammar, spelling, punctuation and complete sentences.

In Class

The next time we meet in class we will complete the "Spyglass Activity". Also, we will complete the assignment below. You may get started on it ahead of time if you'd like.

Pg. 20-21 #20, 25, 29, 31, 33

*For #29, 31 and 33, you should also find a linear model (equation for the line of best fit) for each set of data. The directions in the book do not instruct you to do this, but I'm adding it to the assignment.