Bell Ringer
Slope - Intercept Quiz
Objectives
Use the point slope form of a line
Agenda
- Bell Ringer
- Go to the Gizmos Site and do the Point-Slope of a Line Activity A Gizmo. Follow the Exploration guide given to you by the sub and when through complete the assessment questions. If you forgot your login or have not had one yet (Abigail) the sub has them.
- After this you will need to read pages 279-281 and complete the following problems for Tuesday
- Pg 282-284 # 12-30 multiples of 3, 39-40, 42-43, 52-75
- Closure
Assignment
Pg 282-284 # 12-30 multiples of 3, 39-40, 42-43, 52-75
Bell Ringer
Point Slope Problems
What is the equation of a line that has a slope of 3 and passes through the point (2,5)?
What is the equation of a line that passes through the point (-1,3) and is parallel to the line y=2x-5?
Objectives
Writing linear equatons given two points
- Standard form of a linear equation
Agenda
- Bell Ringer
- Homework check
- Export your PowerPoint Projects to the K drive
- Point -point form of a line / parallel and perpendicular lines
- Gizmo
- Closure
Assignment
pg 288-291 #20-40 multiples of 5, 45-47, 51-52, 66-76
Bell Ringer
Find the equation of the lines when given the following
- Slope = 3 y-intercept = -2
- Slope = 2 and the line passes through (3,5)
- The line passes through (2,4) and (5,-1)
Objectives
Write the equation of the line given 2 points
Use a linear equation to model a real life problem
- Using several forms of a linear equation
Agenda
Bell Ringer
Standard Form of an Equation - Activity A Gizmo
Lines of Best Fit Using Least Squares - Activity A Gizmo
All Forms studied so far + intercept form
Angel Website and discussion forum
Using excel to fit a line to data -activity page 292
Closure
Assignment
In class project - real data
- Find a real set of data on the internet of something that you are interested in. (At least 10 data points) - list those points.
- Define which is the x value- (explanatory) and which is the y value - (response)
- Plot the data on a scatter plot. Include axis labels.
- Add a linear trend line.
- Find the slope, the y-intercept, the x-intercept, and 1 other point on your graph
- Find the equation of the trend line
- Write 3 word problems based on your data and graph
Good sources of data
Sports Statistics
No School In-service
No School