(If no grid is available, describe where your line passes through two approximate points.) An ice cream shop records daily high temperature (°F) and ice cream sales ($).
a) Draw a line of best fit through the data.
a) Is the correlation positive or negative? ___________________
| Temp (°F) | 65 | 70 | 72 | 78 | 82 | 85 | 90 | |-----------|----|----|----|----|----|----|----| | Sales ($) | 150| 180| 200| 240| 300| 330| 400| lesson 2 homework practice lines of best fit
c) Predict the y-value when x = 10: ________
(2, 4), (3, 5), (4, 7), (5, 8), (6, 9), (7, 12), (8, 14)
_________________________ Date: _________________________ Period: _________________________ (If no grid is available, describe where your
b) Equation of line of best fit: ___________________
b) Use two points from your line of best fit to find the slope. Show your work.
b) What does the slope mean in a real-world context? (Write a possible interpretation.) ___________________ | Temp (°F) | 65 | 70
a) Positive or negative correlation? ___________________
c) Write the equation: ___________________
b) Write the equation of your line: ___________________