1. Linear equation construction and prediction

2. Notes Plot points Find slope Find y-intercept using y=mx + b
(4,8) (-2,5)

3. The table shows the number of Sunday newspapers in the U.S.
Make a scatter plot of the data and draw a best fit line
Predict number of newspapers for 2014.
Year
# of newspapers
2001
900
2002
925
2003
950
2004
975
2005
1000
2006
1025

4. The table shows the sales of athletic equipment.
Make a scatter plot of the baseball/softball sales.
Use the line and predict sales for 2015.
Year
Baseball/ softball
1999
300
2000
305
2001
310
2002
315
2003
320
2004
325
2005
330

5. The table shows the number of times a person breathes per minute.
Create a scatterplot from the table and draw a best fit line.
Use line to create an equation.
Use equation and predict how many breaths you would take in 20 minutes.
Minutes
Breathes 1 20 2 40 4 80 8
160

6. The table shows how much a sports athlete made each year.
Make a scatter plot and draw a line of best fit.
Create an equation from your line.
Make a prediction for how much they would make in 2009.
Yrs since 1999
Amount of contract (millions) 1 7 2 8 3 9 4 10 5 11 6 12

7. Use the graph that shows the number of fan clubs in the U. S
Use the graph that shows the number of fan clubs in the U.S. for years following Write an equation in slope-intercept form. 2. Use the equation and predict number of fan clubs in the U.S. in 2012.

8. Use the graph that shows the amount of book sales purchased online for several years following 1997.
Write an equation in slope-intercept form.
Use equation to predict sales of online books in 2013.

9. Use the line showing the amount spent by the government on space and other technology for the years following 1998.
Write an equation in slope-intercept form.
Predict how much will be spent in 2016.

10. According to census, life expectancy in 2000 is 77. 0 yrs
According to census, life expectancy in 2000 is 77.0 yrs. In 2010 it was 78.5yrs.
Write and equation in slope-intercept form.
Use equation and predict life expectancy in 2015.