Mathematics, 03.12.2020 08:40 Squid1865
20 a. Use a graphing calculator to find the equation of the line of best fit. Round the slope to the nearest tenth and the y - intercept to the nearest integer.
y = 4.9x - 38
20 b. Identify the correlation coefficient. Round to the nearest thousandth.
r = 0.936
Interpret the correlation coefficient.
The data show a strong positive correlation.
20 c. Interpret the slope and the y - intercept of the line of best fit.
The slope, m, means, the cost of the sailboat increases by m thousands of dollars for each foot the length of the sailboat increases. The y - intercept, b, indicates the initial cost of the sailboat.
20 d. Use the model from part (a) to approximate the cost of a sailboat that is 20 feet long. The sailboat costs $?
20 e. Use the model from part (a) to predict the length of a sailboat that costs $147,000. Round to the nearest foot. The length is about feet.
Answers: 3
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An animal shelter has 21 puppies. if the puppies are 28% of the total dog and cat population , how many dogs and cats are in the animal shelter
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The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)
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20 a. Use a graphing calculator to find the equation of the line of best fit. Round the slope to the...
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