1. Do Now The chart show the population of a town.
Find the rate of change, in terms of years, from the years 1980 to 1988?
Find the rate of change, in terms of years, from 1984 to 1996?
Year
Population
1980
246
1984
534
1988
822
1992
1,110
1996
1,398
2000
1,686

2. The chart show the population of a town.
Do Now
The chart show the population of a town.
Find the rate of change, in terms of years, from the years 1980 to 1988?
Year
Population
1980
246
1984
534
1988
822
1992
1,110
1996
1,398
2000
1,686

3. Do Now The chart show the population of a town.
Find the rate of change, in terms of years, from 1984 to 1996?
Year
Population
1980
246
1984
534
1988
822
1992
1,110
1996
1,398
2000
1,686

4. Review of yesterday’s worksheet
A rocket is 1 mile above the earth in 30 seconds and 5 miles above the earth in 150 seconds.
What is the rocket’s rate of change in terms of seconds?
What does the rate of change mean?
The rate of change means that every 30 seconds the rocket will travel 1 mile

5. Review of yesterday’s worksheet
A rocket is 1 mile above the earth in 30 seconds and 5 miles above the earth in 150 seconds.
What is the rockets altitude at 270 seconds? 
Seconds
Miles 30 1 60 2 90 3
120 4
150 5
180 6
210 7
240 8
270 9

6. Writing the equation of a line
Write an equation of the line
SWBAT:

7. Where m is the slope and b is the y intercept
Equations of a line
When we first explored linear equations, you learned slope intercept form.
y=mx +b
Where m is the slope and b is the y intercept

8. Equations of a line

9. What does this look like?
Equations of a line
Write the equation of a line that has the slope of -2 and passes through the point (-3,4)
What does this look like?

10. Equations of a line
Write the equation of a line that has the slope of -2 and passes through the point (-3,4)

11. Equations of a line So what does the equation y=-2x-2 tell us?
What is the slope?
The slope is -2
What does the slope mean?
The slope means down 2 and 1 to the right
What is the y intercept?
The y intercept is -2
What does the y intercept mean?
The line intercepts the y axis at -2

12. Equations of a line
So if I graph the equation y=-2x-2 with the original graph, what do you notice?

13. Break into your groups and complete the worksheet
Practice
Break into your groups and complete the worksheet