1.
Do Now ( Quiz # 4 ) - 3 minutes Aim: How can we calculate the slope of a line?
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
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Writing
Homework
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Which statement is true about the relation shown on the graph below? (1) It is a function because there exists one x -coordinate for each y -coordinate. (2) It is not a function because there are multiple y -values for a given x -value. (3) It is a function because there exists one y -coordinate for each x -coordinate. (4) It is not a function because there are multiple x -values for a given y -value.
2.
What is slope? Aim: How can we calculate the slope of a line? Slope (rate of change) is used to describe the steepness of a straight line .
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
Share-out
Discussion
Summary
Writing
Homework
Castlelearning.com
3.
Determine the slope of the line. 6 3 run 3 6 = = rise “ rise over run ”.
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
Share-out
Discussion
Summary
Writing
Homework
Castlelearning.com
Aim: How can we calculate the slope of a line?
4.
Find the slope of the line that passes through the points (-2, -2) and (4, 1). Aim: How can we calculate the slope of a line?
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
Share-out
Discussion
Summary
Writing
Homework
Castlelearning.com
m = ½ or 0.5 ( x 1 , y 1 ) ( x 2 , y 2 )
5.
A line has a positive slope if it is going up hill from left to right . Aim: How can we calculate the slope of a line?
6.
A line has a negative slope if it is going down hill from left to right . Aim: How can we calculate the slope of a line?
10.
What is the slope of a horizontal line? All horizontal lines have a slope of 0. Aim: How can we calculate the slope of a line?
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
Share-out
Discussion
Summary
Writing
Homework
Castlelearning.com
11.
Remember the word “VUXHOY” V ertical lines U ndefined slope X = number (equation of the line) H orizontal lines 0 - zero is the slope Y = number (equation of the line) Aim: How can we calculate the slope of a line?
Agenda :
12/14/10
Do Now
Identifying Functions
Mini-Lesson
Finding Slope
Types of Slope
VUXHOY
Group work
Past Regents Questions
Share-out
Discussion
Summary
Writing
Homework
Castlelearning.com
12.
Find at least two examples of each type of slope from the picture. Aim: How can we calculate the slope of a line?
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