The price per ticket for a certain museum and the number of tickets sold per week are recorded in the table shown. An r-value of 0.77 was found, and the equation of the line of best fit is y^=3770.74+508.46x. Predict the number of tickets sold if the price is set to $9.00. Round your answer to the nearest whole number of tickets. Price ($) 7.7 7.8 8 9.2 8.6 9.1 9.3 9.2 9.2 9.8 9.3 Number sold 7500 7800 8000 8100 8000 8000 8800 9000 8700 8500 8500 Number of tickets sold:
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
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The price per ticket for a certain museum and the number of tickets sold per week are recorded in the table shown. An r-value of 0.77 was found, and the equation of the line of best fit is y^=3770.74+508.46x. Predict the number of tickets sold if the price is set to $9.00. Round your answer to the nearest whole number of tickets.
| Price ($) | 7.7 | 7.8 | 8 | 9.2 | 8.6 | 9.1 | 9.3 | 9.2 | 9.2 | 9.8 | 9.3 |
| Number sold | 7500 | 7800 | 8000 | 8100 | 8000 | 8000 | 8800 | 9000 | 8700 | 8500 | 8500 |
Number of tickets sold:
Solution:
Let X be the price and Y be the number sold.
From the given information, the regression equation is
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