Extended Response The table shows the high temperature (°F) on
July 4 for the past 7 years and the number of water bottles sold at the parade in each year.
Temperature (°F),
x | 82 | 89 | 87 | 81 | 79 | 93 | 90 |
Water Bottles, y | 394 | 438 | 423 | 397 | 378 | 449 | 420 |
| | | | | | | |
a. Graph the data in the table and draw a line of
fit.
b. Write an equation of the line of fit.
c. Predict the number of
water bottles that would be sold if the temperature were 72°F.
d. Explain the
significance of the slope and the
y-intercept in the line of fit.