Learning Exercise

Slope and Y-intercept

This assignment was created by Sue Bertelson of Brookings High School, Brookings, South Dakota.

It introduces students to the concepts of slope and y-intercept of a line, and discusses them in the context of a regression line.
Course: Algebra, Modeling

This site is part of the NCTM's Student i-Math Investigations website. It introduces the regression line and... see more



Students should have been introduced to plotting data points and linear equations.


slope, y-intercept, regression line

Learning Objectives

Students will plot data points. Students will interpret the positive slope of a line as a rate of change. Students will interpret the meaning of a line in the context of real life data. Students will be introduced to the least square regression line.