Friday, April 06, 2007
Algebra (Class 68)
Overview
The main question remains-- How can we find an equation for a line, a rule, when we know the coordinates of two points on the line.
We also write Quiz 11 which focuses on graphing and finding the equations of lines.
Textbook Sections
§8-4 (Txt. p.366) The Slope-Intercept form of a Linear Equation
Key Attitudes
Mathematics is about generalizing and applying patterns.
Key Ideas
The slope of a line is the ratio of the change in y-values compared to the change in x-values.
The slope is represented in a linear equation by the coefficient of the x-value.
The y-intercept can be found by substituting a y-value, the corresponding x-value, the slope (coefficient of x) and then solving for the y-intercept.
Key Skills
Drawing and labeling a coordinate graph.
Plotting points on a coordinate graph.
Determining the coordinates of points on a coordinate graph.
Finding the slope of a line given two points.
Finding the y-intercept using equations.
Operations with integers and positive or negative rational numbers.
Handouts
No Handouts Posted
Assignment
Practice Worksheet
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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