Activity Overview
Students learn to develop the equation of a line from its graph. They also learn to write the equation of a line from the slope and the y-intercept, a point and the slope, and two points. They also investigate slopes of lines that are parallel and perpendicular.
Before the Activity
Install Topics in Algebra 1 (Chapters 1-4) App on the calculator using one of these two methods:
TI Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable
TI-Navigator™ "send to class" feature
See the attached PDF file for detailed instructions for this activity
Print pages 3-28 to 3-32 from the attached PDF file for your class
During the Activity
Distribute the pages to the class.
Follow the Activity procedures:
Use algebraic manipulations to convert an equation into y = mx + c form
In the activity Match It!, select the graph that correctly illustrates an equation
In the activity Line Soccer, solve an equation by using the coordinates to find the values of m and b
Graph a line using the given coordinates of a point and the slope
Find coordinates of two other points from the graph of the line
Use the calculator to graph lines for the two given equations and compare them
Identify the characteristics of parallel lines
Graph other equations and compare the lines formed
After the Activity
Students will complete the Student Worksheet and analyze the results.
Review student results:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary